Boston Marathon logo
BOSTON MARATHON 2023

Alan Snow

Bib: 31952•M

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
34:20
Rank: #25750
Start → 5K
34:20 | 11:03/mi
10K· 6.21 mi
1:07:08
Rank: #25280 (+470)
5K → 10K
32:48 | 10:33/mi
15K· 9.32 mi
1:40:49
Rank: #25165 (+115)
10K → 15K
33:41 | 10:50/mi
20K· 12.43 mi
2:13:18
Rank: #24814 (+351)
15K → 20K
32:29 | 10:27/mi
Half· 13.11 mi
2:20:29
Rank: #24785 (+29)
20K → Half
7:11 | 10:32/mi
25K· 15.53 mi
2:50:52
Rank: #25021 (-236)
Half → 25K
30:23 | 12:32/mi
30K· 18.64 mi
3:32:22
Rank: #25218 (-197)
25K → 30K
41:30 | 13:21/mi
20M
3:49:30
Rank: #25201 (+17)
30K → 20M
17:08 | 12:36/mi
21M
4:02:57
Rank: #25165 (+36)
20M → 21M
13:27 | 13:27/mi
35K· 21.75 mi
4:12:57
Rank: #25207 (-42)
21M → 35K
10:00 | 13:22/mi
23M
4:29:21
Rank: #25226 (-19)
35K → 23M
16:24 | 13:06/mi
24M
4:42:57
Rank: #25275 (-49)
23M → 24M
13:36 | 13:36/mi
40K· 24.85 mi
4:55:49
Rank: #25343 (-68)
24M → 40K
12:52 | 15:03/mi
25.2M
5:00:52
Rank: #25354 (-11)
40K → 25.2M
5:03 | 14:39/mi
Finish· 26.22 mi
5:14:58
Rank: #25421 (-67)
25.2M → Finish
14:06 | 13:50/mi

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
Time2:20:29
Pace10:43 /mi
2nd Half
Distance13.11 mi
Time2:54:29
Pace13:19 /mi
📊Positive Split: 24.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:5134:2011:0334:20
11:03
-
10K
6.21 mi12:26:391:07:0810:4832:48
10:33
-0:30
15K
9.32 mi13:00:201:40:4910:4933:41
10:50
+0:17
20K
12.43 mi13:32:492:13:1810:4432:29
10:27
-0:23
Half
13.11 mi13:40:002:20:2910:437:11
10:32
+0:05
25K
15.53 mi14:10:232:50:5211:0030:23
12:32
+2:00
30K
18.64 mi14:51:533:32:2211:2441:30
13:21
+0:49
20M
20.00 mi15:09:013:49:3011:2817:08
12:36
-0:45
21M
21.00 mi15:22:284:02:5711:3413:27
13:27
+0:51
35K
21.75 mi15:32:284:12:5711:3810:00
13:22
-0:05
23M
23.00 mi15:48:524:29:2111:4316:24
13:06
-0:16
24M
24.00 mi16:02:284:42:5711:4713:36
13:36
+0:30
40K
24.85 mi16:15:204:55:4911:5412:52
15:03
+1:27
25.2M
25.20 mi16:20:235:00:5211:565:03
14:39
-0:24
Finish
26.22 mi16:34:295:14:5812:0114:06
13:50
-0:49

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

10:27 /mi

Average Pace

12:01 /mi

Slowest Pace

15:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:29

45% of race

Time at Steady Pace

2:36:34

50% of race

Time at Slower Pace

17:55

6% of race

Average Pace: 12:01 /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 mi11:53:5134:2011:0334:20
11:03
#25750
10K
6.21 mi12:26:391:07:0810:4832:48
10:33
#25280
15K
9.32 mi13:00:201:40:4910:4933:41
10:50
#25165
20K
12.43 mi13:32:492:13:1810:4432:29
10:27
#24814
Half
13.11 mi13:40:002:20:2910:437:11
10:32
#24785
25K
15.53 mi14:10:232:50:5211:0030:23
12:32
#25021
30K
18.64 mi14:51:533:32:2211:2441:30
13:21
#25218
20M
20.00 mi15:09:013:49:3011:2817:08
12:36
#25201
21M
21.00 mi15:22:284:02:5711:3413:27
13:27
#25165
35K
21.75 mi15:32:284:12:5711:3810:00
13:22
#25207
23M
23.00 mi15:48:524:29:2111:4316:24
13:06
#25226
24M
24.00 mi16:02:284:42:5711:4713:36
13:36
#25275
40K
24.85 mi16:15:204:55:4911:5412:52
15:03
#25343
25.2M
25.20 mi16:20:235:00:5211:565:03
14:39
#25354
Finish
26.22 mi16:34:295:14:5812:0114:06
13:50
#25421
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi25750148401484024994(Top 94%)14516(Top 96%)14516(Top 1308%)
10K6.21 mi3.10 mi25280+47014673+16714673+16724781(Top 93%)14443(Top 95%)14443(Top 1301%)
15K9.32 mi3.11 mi25165+11514611+6214611+6224994(Top 94%)14516(Top 96%)14516(Top 1308%)
20K12.43 mi3.11 mi24814+35114444+16714444+16723764(Top 89%)13960(Top 92%)13960(Top 1258%)
Half13.11 mi0.68 mi24785+2914425+1914425+1924257(Top 91%)14173(Top 93%)14173(Top 1277%)
25K15.53 mi2.42 mi25021-23614525-10014525-10025567(Top 96%)14715(Top 97%)14715(Top 1326%)
30K18.64 mi3.11 mi25218-19714590-6514590-6525670(Top 96%)14716(Top 97%)14716(Top 1326%)
20M20.00 mi1.36 mi25201+1714567+2314567+2324838(Top 93%)14301(Top 94%)14301(Top 1288%)
21M21.00 mi1.00 mi25165+3614546+2114546+2124533(Top 92%)14152(Top 93%)14152(Top 1275%)
35K21.75 mi0.75 mi25207-4214559-1314559-1325798(Top 97%)14733(Top 97%)14733(Top 1327%)
23M23.00 mi1.25 mi25226-1914556+314556+325189(Top 95%)14430(Top 95%)14430(Top 1300%)
24M24.00 mi1.00 mi25275-4914577-2114577-2125865(Top 97%)14743(Top 97%)14743(Top 1328%)
40K24.85 mi0.85 mi25343-6814605-2814605-2826166(Top 98%)14893(Top 98%)14893(Top 1342%)
25.2M25.20 mi0.35 mi25354-1114612-714612-725485(Top 96%)14538(Top 96%)14538(Top 1310%)
Finish26.22 mi1.02 mi25421-6714638-2614638-2626315(Top 99%)14977(Top 99%)14977(Top 1349%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21stories
+97ft-345ft

Overall

24994

Males

14516

M60-64

14516

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

24781

Males

14443

M60-64

14443

10K→15K

6.2 - 9.3 mi

Top 94%
×3stories
+67ft-78ft

Overall

24994

Males

14516

M60-64

14516

15K→20K

9.3 - 12.4 mi

Top 89%
×5stories
+106ft-86ft

Overall

23764

Males

13960

M60-64

13960

20K→Half

12.4 - 13.1 mi

Top 91%
×2stories
+19ft-37ft

Overall

24257

Males

14173

M60-64

14173

Half→25K

13.1 - 15.5 mi

Top 96%
×4stories
+66ft-88ft

Overall

25567

Males

14715

M60-64

14715

25K→30K

15.5 - 18.6 mi

Top 96%
×9stories
+181ft-148ft

Overall

25670

Males

14716

M60-64

14716

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

24838

Males

14301

M60-64

14301

20M→21M

20.0 - 21.0 mi

Top 92%
×8stories
+106ft-24ft

Overall

24533

Males

14152

M60-64

14152

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

25798

Males

14733

M60-64

14733

35K→23M

21.8 - 23.0 mi

Top 95%
×5stories
+23ft-63ft

Overall

25189

Males

14430

M60-64

14430

23M→24M

23.0 - 24.0 mi

Top 97%
×6stories
+12ft-82ft

Overall

25865

Males

14743

M60-64

14743

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

26166

Males

14893

M60-64

14893

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

25485

Males

14538

M60-64

14538

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2stories
+22ft-21ft

Overall

26315

Males

14977

M60-64

14977

Passing Analysis

Category:
Athletes Passed
1252
Passed By
923
Net Change
+329
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25750
5K → 10K49121+470#25750#25280
10K → 15K17156+115#25280#25165
15K → 20K3598+351#25165#24814
20K → Half3910+29#24814#24785
Half → 25K18254-236#24785#25021
25K → 30K29226-197#25021#25218
30K → 20M4326+17#25218#25201
20M → 21M5115+36#25201#25165
21M → 35K1153-42#25165#25207
35K → 23M2443-19#25207#25226
23M → 24M756-49#25226#25275
24M → 40K573-68#25275#25343
40K → 25.2M314-11#25343#25354
25.2M → Finish168-67#25354#25421
TOTALS1252923+329
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing