All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2023

Michael Smith

Bib: 8345•M

OH

Masters
Boston Marathon logo
0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 20%
Masters (Masters Men)
#0 / 9891
Top 8%
Age Group (M40-44)
#0 / 2241
Top 21%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
21:00
Rank: #4229
Start → 5K
21:00 | 6:46/mi
10K· 6.21 mi
41:52
Rank: #4347 (-118)
5K → 10K
20:52 | 6:43/mi
15K· 9.32 mi
1:02:47
Rank: #4375 (-28)
10K → 15K
20:55 | 6:44/mi
20K· 12.43 mi
1:23:41
Rank: #4187 (+188)
15K → 20K
20:54 | 6:44/mi
Half· 13.11 mi
1:28:15
Rank: #4189 (-2)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:45:11
Rank: #4410 (-221)
Half → 25K
16:56 | 6:59/mi
30K· 18.64 mi
2:06:27
Rank: #4144 (+266)
25K → 30K
21:16 | 6:51/mi
20M
2:15:39
Rank: #3992 (+152)
30K → 20M
9:12 | 6:46/mi
21M
2:22:42
Rank: #3814 (+178)
20M → 21M
7:03 | 7:03/mi
35K· 21.75 mi
2:27:39
Rank: #3774 (+40)
21M → 35K
4:57 | 6:37/mi
23M
2:36:11
Rank: #3658 (+116)
35K → 23M
8:32 | 6:49/mi
24M
2:42:36
Rank: #3510 (+148)
23M → 24M
6:25 | 6:25/mi
40K· 24.85 mi
2:48:08
Rank: #3379 (+131)
24M → 40K
5:32 | 6:28/mi
25.2M
2:50:36
Rank: #3334 (+45)
40K → 25.2M
2:28 | 7:09/mi
Finish· 26.22 mi
2:57:15
Rank: #3260 (+74)
25.2M → Finish
6:39 | 6:32/mi
Is this your race?

Claim it — get your free Race Performance Report

An AI deep-dive into your pacing, rankings, and passing — built from your real splits and emailed to you, free.

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via Half
Distance13.11 mi
Time1:28:15
Pace6:44 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:00
Pace6:47 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:0921:006:4621:00
6:46
-
10K
6.21 mi11:07:0141:526:4420:52
6:43
-0:03
15K
9.32 mi11:27:561:02:476:4420:55
6:44
+0:01
20K
12.43 mi11:48:501:23:416:4420:54
6:44
0:00
Half
13.11 mi11:53:241:28:156:444:34
6:42
-0:02
25K
15.53 mi12:10:201:45:116:4616:56
6:59
+0:17
30K
18.64 mi12:31:362:06:276:4721:16
6:51
-0:08
20M
20.00 mi12:40:482:15:396:479:12
6:46
-0:05
21M
21.00 mi12:47:512:22:426:487:03
7:03
+0:17
35K
21.75 mi12:52:482:27:396:474:57
6:37
-0:26
23M
23.00 mi13:01:202:36:116:478:32
6:49
+0:12
24M
24.00 mi13:07:452:42:366:476:25
6:25
-0:24
40K
24.85 mi13:13:172:48:086:465:32
6:28
+0:03
25.2M
25.20 mi13:15:452:50:366:462:28
7:09
+0:41
Finish
26.22 mi13:22:242:57:156:466:39
6:32
-0:37

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:25 /mi

Average Pace

6:46 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:54:47

99% of race

Time at Steady Pace

2:28

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:46 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:46:0921:006:4621:00
6:46
#4229
10K
6.21 mi11:07:0141:526:4420:52
6:43
#4347
15K
9.32 mi11:27:561:02:476:4420:55
6:44
#4375
20K
12.43 mi11:48:501:23:416:4420:54
6:44
#4187
Half
13.11 mi11:53:241:28:156:444:34
6:42
#4189
25K
15.53 mi12:10:201:45:116:4616:56
6:59
#4410
30K
18.64 mi12:31:362:06:276:4721:16
6:51
#4144
20M
20.00 mi12:40:482:15:396:479:12
6:46
#3992
21M
21.00 mi12:47:512:22:426:487:03
7:03
#3814
35K
21.75 mi12:52:482:27:396:474:57
6:37
#3774
23M
23.00 mi13:01:202:36:116:478:32
6:49
#3658
24M
24.00 mi13:07:452:42:366:476:25
6:25
#3510
40K
24.85 mi13:13:172:48:086:465:32
6:28
#3379
25.2M
25.20 mi13:15:452:50:366:462:28
7:09
#3334
Finish
26.22 mi13:22:242:57:156:466:39
6:32
#3260
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4229395839584431(Top 17%)4140(Top 27%)4140(Top 185%)
10K6.21 mi3.10 mi4347-1184071-1134071-1134484(Top 17%)4189(Top 28%)4189(Top 187%)
15K9.32 mi3.11 mi4375-284094-234094-234431(Top 17%)4140(Top 27%)4140(Top 185%)
20K12.43 mi3.11 mi4187+1883929+1653929+1653770(Top 14%)3558(Top 23%)3558(Top 159%)
Half13.11 mi0.68 mi4189-23926+33926+34194(Top 16%)3918(Top 26%)3918(Top 175%)
25K15.53 mi2.42 mi4410-2214124-1984124-1985458(Top 21%)5023(Top 33%)5023(Top 224%)
30K18.64 mi3.11 mi4144+2663896+2283896+2283284(Top 12%)3094(Top 20%)3094(Top 138%)
20M20.00 mi1.36 mi3992+1523754+1423754+1422658(Top 10%)2515(Top 17%)2515(Top 112%)
21M21.00 mi1.00 mi3814+1783591+1633591+1632402(Top 9%)2271(Top 15%)2271(Top 101%)
35K21.75 mi0.75 mi3774+403556+353556+353085(Top 12%)2887(Top 19%)2887(Top 129%)
23M23.00 mi1.25 mi3658+1163452+1043452+1042743(Top 10%)2569(Top 17%)2569(Top 115%)
24M24.00 mi1.00 mi3510+1483316+1363316+1361766(Top 7%)1667(Top 11%)1667(Top 74%)
40K24.85 mi0.85 mi3379+1313193+1233193+1231461(Top 5%)1380(Top 9%)1380(Top 62%)
25.2M25.20 mi0.35 mi3334+453153+403153+402333(Top 9%)2166(Top 14%)2166(Top 97%)
Finish26.22 mi1.02 mi3260+743083+703083+702612(Top 10%)2398(Top 16%)2398(Top 107%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4431

Males

4140

M40-44

4140

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4484

Males

4189

M40-44

4189

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4431

Males

4140

M40-44

4140

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3770

Males

3558

M40-44

3558

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4194

Males

3918

M40-44

3918

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

5458

Males

5023

M40-44

5023

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3284

Males

3094

M40-44

3094

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2658

Males

2515

M40-44

2515

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2402

Males

2271

M40-44

2271

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3085

Males

2887

M40-44

2887

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2743

Males

2569

M40-44

2569

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1766

Males

1667

M40-44

1667

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1461

Males

1380

M40-44

1380

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2333

Males

2166

M40-44

2166

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2612

Males

2398

M40-44

2398

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1774
Passed By
805
Net Change
+969
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4229
5K → 10K164282-118#4229#4347
10K → 15K117145-28#4347#4375
15K → 20K20618+188#4375#4187
20K → Half2123-2#4187#4189
Half → 25K39260-221#4189#4410
25K → 30K28115+266#4410#4144
30K → 20M1542+152#4144#3992
20M → 21M1824+178#3992#3814
21M → 35K5313+40#3814#3774
35K → 23M13418+116#3774#3658
23M → 24M1502+148#3658#3510
24M → 40K1321+131#3510#3379
40K → 25.2M461+45#3379#3334
25.2M → Finish9521+74#3334#3260
TOTALS1774805+969
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing