Boston Marathon logo
BOSTON MARATHON 2023

Jonathan Crampton

Bib: 18967•M

UT

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
26:54
Rank: #18621
Start → 5K
26:54 | 8:39/mi
10K· 6.21 mi
55:15
Rank: #20151 (-1530)
5K → 10K
28:21 | 9:07/mi
15K· 9.32 mi
1:31:32
Rank: #23199 (-3048)
10K → 15K
36:17 | 11:41/mi
20K· 12.43 mi
2:05:48
Rank: #23691 (-492)
15K → 20K
34:16 | 11:02/mi
Half· 13.11 mi
2:12:55
Rank: #23700 (-9)
20K → Half
7:07 | 10:26/mi
25K· 15.53 mi
2:38:10
Rank: #23572 (+128)
Half → 25K
25:15 | 10:25/mi
30K· 18.64 mi
3:11:32
Rank: #23383 (+189)
25K → 30K
33:22 | 10:44/mi
20M
3:27:48
Rank: #23466 (-83)
30K → 20M
16:16 | 11:58/mi
21M
3:40:40
Rank: #23502 (-36)
20M → 21M
12:52 | 12:52/mi
35K· 21.75 mi
3:49:01
Rank: #23503 (-1)
21M → 35K
8:21 | 11:10/mi
23M
4:03:20
Rank: #23500 (+3)
35K → 23M
14:19 | 11:26/mi
24M
4:15:29
Rank: #23573 (-73)
23M → 24M
12:09 | 12:09/mi
40K· 24.85 mi
4:25:27
Rank: #23581 (-8)
24M → 40K
9:58 | 11:39/mi
25.2M
4:29:28
Rank: #23568 (+13)
40K → 25.2M
4:01 | 11:39/mi
Finish· 26.22 mi
4:40:14
Rank: #23559 (+9)
25.2M → Finish
10:46 | 10:34/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
Time2:12:55
Pace10:08 /mi
2nd Half
Distance13.11 mi
Time2:27:19
Pace11:14 /mi
📊Positive Split: 10.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:1226:548:3926:54
8:39
-
10K
6.21 mi11:51:3355:158:5328:21
9:07
+0:28
15K
9.32 mi12:27:501:31:329:4936:17
11:41
+2:34
20K
12.43 mi13:02:062:05:4810:0734:16
11:02
-0:39
Half
13.11 mi13:09:132:12:5510:087:07
10:26
-0:36
25K
15.53 mi13:34:282:38:1010:1125:15
10:25
-0:01
30K
18.64 mi14:07:503:11:3210:1633:22
10:44
+0:19
20M
20.00 mi14:24:063:27:4810:2316:16
11:58
+1:14
21M
21.00 mi14:36:583:40:4010:3012:52
12:52
+0:54
35K
21.75 mi14:45:193:49:0110:328:21
11:10
-1:42
23M
23.00 mi14:59:384:03:2010:3514:19
11:26
+0:16
24M
24.00 mi15:11:474:15:2910:3912:09
12:09
+0:43
40K
24.85 mi15:21:454:25:2710:419:58
11:39
-0:30
25.2M
25.20 mi15:25:464:29:2810:424:01
11:39
0:00
Finish
26.22 mi15:36:324:40:1410:4210:46
10:34
-1:05

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

8:39 /mi

Average Pace

10:42 /mi

Slowest Pace

12:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:23

35% of race

Time at Steady Pace

2:20:34

50% of race

Time at Slower Pace

41:17

15% of race

Average Pace: 10:41 /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 mi11:23:1226:548:3926:54
8:39
#18621
10K
6.21 mi11:51:3355:158:5328:21
9:07
#20151
15K
9.32 mi12:27:501:31:329:4936:17
11:41
#23199
20K
12.43 mi13:02:062:05:4810:0734:16
11:02
#23691
Half
13.11 mi13:09:132:12:5510:087:07
10:26
#23700
25K
15.53 mi13:34:282:38:1010:1125:15
10:25
#23572
30K
18.64 mi14:07:503:11:3210:1633:22
10:44
#23383
20M
20.00 mi14:24:063:27:4810:2316:16
11:58
#23466
21M
21.00 mi14:36:583:40:4010:3012:52
12:52
#23502
35K
21.75 mi14:45:193:49:0110:328:21
11:10
#23503
23M
23.00 mi14:59:384:03:2010:3514:19
11:26
#23500
24M
24.00 mi15:11:474:15:2910:3912:09
12:09
#23573
40K
24.85 mi15:21:454:25:2710:419:58
11:39
#23581
25.2M
25.20 mi15:25:464:29:2810:424:01
11:39
#23568
Finish
26.22 mi15:36:324:40:1410:4210:46
10:34
#23559
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18621116541165425856(Top 97%)14881(Top 98%)14881(Top 1341%)
10K6.21 mi3.10 mi20151-153012281-62712281-62721372(Top 80%)12872(Top 85%)12872(Top 1160%)
15K9.32 mi3.11 mi23199-304813724-144313724-144325856(Top 97%)14881(Top 98%)14881(Top 1341%)
20K12.43 mi3.11 mi23691-49213951-22713951-22724666(Top 93%)14353(Top 95%)14353(Top 1293%)
Half13.11 mi0.68 mi23700-913955-413955-424065(Top 90%)14096(Top 93%)14096(Top 1270%)
25K15.53 mi2.42 mi23572+12813892+6313892+6323025(Top 86%)13600(Top 90%)13600(Top 1225%)
30K18.64 mi3.11 mi23383+18913778+11413778+11422681(Top 85%)13370(Top 88%)13370(Top 1205%)
20M20.00 mi1.36 mi23466-8313802-2413802-2424163(Top 91%)13976(Top 92%)13976(Top 1259%)
21M21.00 mi1.00 mi23502-3613820-1813820-1823927(Top 90%)13859(Top 91%)13859(Top 1249%)
35K21.75 mi0.75 mi23503-113811+913811+923581(Top 89%)13637(Top 90%)13637(Top 1229%)
23M23.00 mi1.25 mi23500+313800+1113800+1123128(Top 87%)13448(Top 89%)13448(Top 1212%)
24M24.00 mi1.00 mi23573-7313831-3113831-3124697(Top 93%)14145(Top 93%)14145(Top 1274%)
40K24.85 mi0.85 mi23581-813828+313828+323446(Top 88%)13517(Top 89%)13517(Top 1218%)
25.2M25.20 mi0.35 mi23568+1313815+1313815+1321846(Top 82%)12789(Top 84%)12789(Top 1152%)
Finish26.22 mi1.02 mi23559+913795+2013795+2023135(Top 87%)13405(Top 88%)13405(Top 1208%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21stories
+97ft-345ft

Overall

25856

Males

14881

M60-64

14881

5K→10K

3.1 - 6.2 mi

Top 80%
×5stories
+79ft-138ft

Overall

21372

Males

12872

M60-64

12872

10K→15K

6.2 - 9.3 mi

Top 97%
×3stories
+67ft-78ft

Overall

25856

Males

14881

M60-64

14881

15K→20K

9.3 - 12.4 mi

Top 93%
×5stories
+106ft-86ft

Overall

24666

Males

14353

M60-64

14353

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

24065

Males

14096

M60-64

14096

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

23025

Males

13600

M60-64

13600

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

22681

Males

13370

M60-64

13370

30K→20M

18.6 - 20.0 mi

Top 91%
×5stories
+64ft-50ft

Overall

24163

Males

13976

M60-64

13976

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

23927

Males

13859

M60-64

13859

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

23581

Males

13637

M60-64

13637

35K→23M

21.8 - 23.0 mi

Top 87%
×5stories
+23ft-63ft

Overall

23128

Males

13448

M60-64

13448

23M→24M

23.0 - 24.0 mi

Top 93%
×6stories
+12ft-82ft

Overall

24697

Males

14145

M60-64

14145

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23446

Males

13517

M60-64

13517

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21846

Males

12789

M60-64

12789

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2stories
+22ft-21ft

Overall

23135

Males

13405

M60-64

13405

Passing Analysis

Category:
Athletes Passed
660
Passed By
5598
Net Change
-4938
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18621
5K → 10K301560-1530#18621#20151
10K → 15K13049-3048#20151#23199
15K → 20K20512-492#23199#23691
20K → Half1928-9#23691#23700
Half → 25K16335+128#23700#23572
25K → 30K21425+189#23572#23383
30K → 20M27110-83#23383#23466
20M → 21M2561-36#23466#23502
21M → 35K2829-1#23502#23503
35K → 23M4340+3#23503#23500
23M → 24M1083-73#23500#23573
24M → 40K2432-8#23573#23581
40K → 25.2M185+13#23581#23568
25.2M → Finish3829+9#23568#23559
TOTALS6605598-4938
📊

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