Boston Marathon logo
BOSTON MARATHON 2023

Mike Crawford

Bib: 8641•M

ON

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 22%
Gender (Male)
#0 / 15176
Top 34%
Masters (Masters Men)
#0 / 9891
Top 20%
Division (M50-54)
#0 / 2052
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:07/mi
22:06
↑ 97↓ 3451.5%
10K· 6.21 mi
6:56/mi
43:37
↑ 79↓ 1380.4%
15K· 9.32 mi
6:51/mi
1:04:55
↑ 67↓ 78
20K· 12.43 mi
7:00/mi
1:26:40
↑ 106↓ 860.1%
Half· 13.11 mi
6:52/mi
1:31:21
↑ 19↓ 370.5%
25K· 15.53 mi
7:04/mi
1:48:28
↑ 66↓ 880.2%
30K· 18.64 mi
7:20/mi
2:11:16
↑ 181↓ 1480.2%
20M
7:21/mi
2:21:15
↑ 64↓ 500.2%
21M
7:53/mi
2:29:08
↑ 106↓ 241.6%
35K· 21.75 mi
7:05/mi
2:34:26
↑ 17↓ 861.7%
23M
7:20/mi
2:43:37
↑ 23↓ 630.6%
24M
7:09/mi
2:50:46
↓ 821.3%
40K· 24.85 mi
7:23/mi
2:57:05
↓ 200.3%
25.2M
7:58/mi
2:59:50
↑ 13↓ 160.2%
Finish· 26.22 mi
7:26/mi
3:07:24
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:21
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:36:03
Pace7:20 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:3022:067:0722:06
7:07
-
10K
6.21 mi11:09:0143:377:0121:31
6:56
-0:11
15K
9.32 mi11:30:191:04:556:5821:18
6:51
-0:05
20K
12.43 mi11:52:041:26:406:5821:45
7:00
+0:09
Half
13.11 mi11:56:451:31:216:584:41
6:52
-0:08
25K
15.53 mi12:13:521:48:286:5917:07
7:04
+0:12
30K
18.64 mi12:36:402:11:167:0322:48
7:20
+0:16
20M
20.00 mi12:46:392:21:157:049:59
7:21
+0:01
21M
21.00 mi12:54:322:29:087:067:53
7:53
+0:32
35K
21.75 mi12:59:502:34:267:065:18
7:05
-0:48
23M
23.00 mi13:09:012:43:377:079:11
7:20
+0:15
24M
24.00 mi13:16:102:50:467:077:09
7:09
-0:11
40K
24.85 mi13:22:292:57:057:076:19
7:23
+0:14
25.2M
25.20 mi13:25:142:59:507:082:45
7:58
+0:35
Finish
26.22 mi13:32:483:07:247:097:34
7:26
-0:32

Checkpoints & Pacing

📈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

6:51 /mi

Average Pace

7:09 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:46

94% of race

Time at Steady Pace

10:38

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:09 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:47:3022:067:0722:06
7:07
#6947
10K
6.21 mi11:09:0143:377:0121:31
6:56
#6612
15K
9.32 mi11:30:191:04:556:5821:18
6:51
#6283
20K
12.43 mi11:52:041:26:406:5821:45
7:00
#6184
Half
13.11 mi11:56:451:31:216:584:41
6:52
#6161
25K
15.53 mi12:13:521:48:286:5917:07
7:04
#6097
30K
18.64 mi12:36:402:11:167:0322:48
7:20
#6067
20M
20.00 mi12:46:392:21:157:049:59
7:21
#6016
21M
21.00 mi12:54:322:29:087:067:53
7:53
#6005
35K
21.75 mi12:59:502:34:267:065:18
7:05
#5962
23M
23.00 mi13:09:012:43:377:079:11
7:20
#5886
24M
24.00 mi13:16:102:50:467:077:09
7:09
#5820
40K
24.85 mi13:22:292:57:057:076:19
7:23
#5784
25.2M
25.20 mi13:25:142:59:507:082:45
7:58
#5765
Finish
26.22 mi13:32:483:07:247:097:34
7:26
#5791
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi6947622862285617(Top 21%)5159(Top 34%)5159(Top 251%)
10K6.21 mi3.10 mi6612+3355964+2645964+2646309(Top 24%)5708(Top 38%)5708(Top 278%)
15K9.32 mi3.11 mi6283+3295697+2675697+2675617(Top 21%)5159(Top 34%)5159(Top 251%)
20K12.43 mi3.11 mi6184+995614+835614+835976(Top 22%)5456(Top 36%)5456(Top 266%)
Half13.11 mi0.68 mi6161+235605+95605+95767(Top 22%)5299(Top 35%)5299(Top 258%)
25K15.53 mi2.42 mi6097+645555+505555+505892(Top 22%)5364(Top 35%)5364(Top 261%)
30K18.64 mi3.11 mi6067+305514+415514+416238(Top 23%)5540(Top 37%)5540(Top 270%)
20M20.00 mi1.36 mi6016+515461+535461+535882(Top 22%)5201(Top 34%)5201(Top 253%)
21M21.00 mi1.00 mi6005+115442+195442+196619(Top 25%)5619(Top 37%)5619(Top 274%)
35K21.75 mi0.75 mi5962+435400+425400+425801(Top 22%)5091(Top 34%)5091(Top 248%)
23M23.00 mi1.25 mi5886+765336+645336+645490(Top 21%)4827(Top 32%)4827(Top 235%)
24M24.00 mi1.00 mi5820+665272+645272+645463(Top 21%)4752(Top 31%)4752(Top 232%)
40K24.85 mi0.85 mi5784+365233+395233+395972(Top 22%)4996(Top 33%)4996(Top 243%)
25.2M25.20 mi0.35 mi5765+195212+215212+216286(Top 24%)5122(Top 34%)5122(Top 250%)
Finish26.22 mi1.02 mi5791-265220-85220-87920(Top 30%)6112(Top 40%)6112(Top 298%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21story building
+97ft-345ft

Overall

5617

Males

5159

M50-54

5159

5K→10K

3.1 - 6.2 mi

Top 24%
×5story building
+79ft-138ft

Overall

6309

Males

5708

M50-54

5708

10K→15K

6.2 - 9.3 mi

Top 21%
×3story building
+67ft-78ft

Overall

5617

Males

5159

M50-54

5159

15K→20K

9.3 - 12.4 mi

Top 22%
×5story building
+106ft-86ft

Overall

5976

Males

5456

M50-54

5456

20K→Half

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

5767

Males

5299

M50-54

5299

Half→25K

13.1 - 15.5 mi

Top 22%
×4story building
+66ft-88ft

Overall

5892

Males

5364

M50-54

5364

25K→30K

15.5 - 18.6 mi

Top 23%
×9story building
+181ft-148ft

Overall

6238

Males

5540

M50-54

5540

30K→20M

18.6 - 20.0 mi

Top 22%
×5story building
+64ft-50ft

Overall

5882

Males

5201

M50-54

5201

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6619

Males

5619

M50-54

5619

21M→35K

21.0 - 21.8 mi

Top 22%
×7story building
+17ft-86ft

Overall

5801

Males

5091

M50-54

5091

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

5490

Males

4827

M50-54

4827

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

5463

Males

4752

M50-54

4752

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5972

Males

4996

M50-54

4996

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6286

Males

5122

M50-54

5122

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

7920

Males

6112

M50-54

6112

Passing Analysis

Category:
Athletes Passed
1698
Passed By
542
Net Change
+1156
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6947
5K → 10K39863+335#6947#6612
10K → 15K34314+329#6612#6283
15K → 20K14748+99#6283#6184
20K → Half3411+23#6184#6161
Half → 25K11652+64#6161#6097
25K → 30K136106+30#6097#6067
30K → 20M8534+51#6067#6016
20M → 21M6049+11#6016#6005
21M → 35K5613+43#6005#5962
35K → 23M10024+76#5962#5886
23M → 24M8620+66#5886#5820
24M → 40K6125+36#5820#5784
40K → 25.2M3112+19#5784#5765
25.2M → Finish4571-26#5765#5791
TOTALS1698542+1156
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

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

.gpx files up to 10MB

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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing