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BOSTON MARATHON 2025

John Courington

Bib: 4209•M

MN

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 35%
Gender (Male)
#0 / 16105
Top 47%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:49
Rank: #2975
Start → 5K
19:49 | 6:23/mi
10K· 6.21 mi
39:43
Rank: #3012 (-37)
5K → 10K
19:54 | 6:24/mi
15K· 9.32 mi
59:31
Rank: #2901 (+111)
10K → 15K
19:48 | 6:22/mi
20K· 12.43 mi
1:25:43
Rank: #6798 (-3897)
15K → 20K
26:12 | 8:26/mi
Half· 13.11 mi
1:30:12
Rank: #6682 (+116)
20K → Half
4:29 | 6:34/mi
25K· 15.53 mi
1:47:14
Rank: #6594 (+88)
Half → 25K
17:02 | 7:02/mi
30K· 18.64 mi
2:10:09
Rank: #6552 (+42)
25K → 30K
22:55 | 7:23/mi
20M
2:35:31
Rank: #12520 (-5968)
30K → 20M
25:22 | 18:40/mi
21M
2:42:49
Rank: #11904 (+616)
20M → 21M
7:18 | 7:18/mi
35K· 21.75 mi
2:48:00
Rank: #11615 (+289)
21M → 35K
5:11 | 6:56/mi
23M
2:56:47
Rank: #11028 (+587)
35K → 23M
8:47 | 7:01/mi
24M
3:03:42
Rank: #10648 (+380)
23M → 24M
6:55 | 6:55/mi
40K· 24.85 mi
3:09:41
Rank: #10329 (+319)
24M → 40K
5:59 | 7:00/mi
25.2M
3:12:17
Rank: #10168 (+161)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
3:18:58
Rank: #9810 (+358)
25.2M → Finish
6:41 | 6:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:12
Pace6:53 /mi
2nd Half
Distance13.11 mi
Time1:48:46
Pace8:18 /mi
📊Positive Split: 20.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5819:496:2319:49
6:23
-
10K
6.21 mi10:41:5239:436:2419:54
6:24
+0:01
15K
9.32 mi11:01:4059:316:2319:48
6:22
-0:02
20K
12.43 mi11:27:521:25:436:5426:12
8:26
+2:04
Half
13.11 mi11:32:211:30:126:534:29
6:34
-1:52
25K
15.53 mi11:49:231:47:146:5417:02
7:02
+0:28
30K
18.64 mi12:12:182:10:096:5922:55
7:23
+0:21
20M
20.00 mi12:37:402:35:317:4725:22
18:40
+11:17
21M
21.00 mi12:44:582:42:497:457:18
7:18
-11:22
35K
21.75 mi12:50:092:48:007:435:11
6:56
-0:22
23M
23.00 mi12:58:562:56:477:418:47
7:01
+0:05
24M
24.00 mi13:05:513:03:427:396:55
6:55
-0:06
40K
24.85 mi13:11:503:09:417:385:59
7:00
+0:05
25.2M
25.20 mi13:14:263:12:177:382:36
7:32
+0:32
Finish
26.22 mi13:21:073:18:587:366:41
6:34
-0:58

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

6:22 /mi

Average Pace

7:36 /mi

Slowest Pace

18:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:53:36

87% of race

Time at Slower Pace

25:22

13% of race

Average Pace: 7:35 /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 mi10:21:5819:496:2319:49
6:23
#2975
10K
6.21 mi10:41:5239:436:2419:54
6:24
#3012
15K
9.32 mi11:01:4059:316:2319:48
6:22
#2901
20K
12.43 mi11:27:521:25:436:5426:12
8:26
#6798
Half
13.11 mi11:32:211:30:126:534:29
6:34
#6682
25K
15.53 mi11:49:231:47:146:5417:02
7:02
#6594
30K
18.64 mi12:12:182:10:096:5922:55
7:23
#6552
20M
20.00 mi12:37:402:35:317:4725:22
18:40
#12520
21M
21.00 mi12:44:582:42:497:457:18
7:18
#11904
35K
21.75 mi12:50:092:48:007:435:11
6:56
#11615
23M
23.00 mi12:58:562:56:477:418:47
7:01
#11028
24M
24.00 mi13:05:513:03:427:396:55
6:55
#10648
40K
24.85 mi13:11:503:09:417:385:59
7:00
#10329
25.2M
25.20 mi13:14:263:12:177:382:36
7:32
#10168
Finish
26.22 mi13:21:073:18:587:366:41
6:34
#9810
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2975283128312783(Top 10%)2650(Top 16%)2650(Top 47%)
10K6.21 mi3.10 mi3012-372866-352866-353086(Top 11%)2939(Top 18%)2939(Top 52%)
15K9.32 mi3.11 mi2901+1112765+1012765+1012783(Top 10%)2650(Top 16%)2650(Top 47%)
20K12.43 mi3.11 mi6798-38976128-33636128-336317740(Top 62%)11497(Top 71%)11497(Top 204%)
Half13.11 mi0.68 mi6682+1166034+946034+944243(Top 15%)3982(Top 25%)3982(Top 71%)
25K15.53 mi2.42 mi6594+885944+905944+906483(Top 23%)5758(Top 36%)5758(Top 102%)
30K18.64 mi3.11 mi6552+425878+665878+666916(Top 24%)5921(Top 37%)5921(Top 105%)
20M20.00 mi1.36 mi12520-59689167-32899167-328928363(Top 100%)16075(Top 100%)16075(Top 285%)
21M21.00 mi1.00 mi11904+6168851+3168851+3163647(Top 13%)3336(Top 21%)3336(Top 59%)
35K21.75 mi0.75 mi11615+2898692+1598692+1594941(Top 17%)4353(Top 27%)4353(Top 77%)
23M23.00 mi1.25 mi11028+5878369+3238369+3233870(Top 14%)3483(Top 22%)3483(Top 62%)
24M24.00 mi1.00 mi10648+3808150+2198150+2194197(Top 15%)3698(Top 23%)3698(Top 66%)
40K24.85 mi0.85 mi10329+3197964+1867964+1863917(Top 14%)3436(Top 21%)3436(Top 61%)
25.2M25.20 mi0.35 mi10168+1617864+1007864+1003636(Top 13%)3180(Top 20%)3180(Top 56%)
Finish26.22 mi1.02 mi9810+3587649+2157649+2153130(Top 11%)2785(Top 17%)2785(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2783

Males

2650

M18-39

2650

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3086

Males

2939

M18-39

2939

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2783

Males

2650

M18-39

2650

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

17740

Males

11497

M18-39

11497

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4243

Males

3982

M18-39

3982

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6483

Males

5758

M18-39

5758

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6916

Males

5921

M18-39

5921

30K→20M

18.6 - 20.0 mi

Top 100%
×5stories
+64ft-50ft

Overall

28363

Males

16075

M18-39

16075

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3647

Males

3336

M18-39

3336

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4941

Males

4353

M18-39

4353

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3870

Males

3483

M18-39

3483

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4197

Males

3698

M18-39

3698

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3917

Males

3436

M18-39

3436

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3636

Males

3180

M18-39

3180

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3130

Males

2785

M18-39

2785

Passing Analysis

Category:
Athletes Passed
3461*
Passed By
10294
Net Change
-6835
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2975
5K → 10K117154-37#2975#3012
10K → 15K15342+111#3012#2901
15K → 20K13898-3897#2901#6798
20K → Half1160+116#6798#6682
Half → 25K16577+88#6682#6594
25K → 30K197155+42#6594#6552
30K → 20M15967-5968#6552#12520
20M → 21M6160+616#12520#11904
21M → 35K2890+289#11904#11615
35K → 23M5870+587#11615#11028
23M → 24M3800+380#11028#10648
24M → 40K3190+319#10648#10329
40K → 25.2M1610+161#10329#10168
25.2M → Finish359*1+358#10168#9810
TOTALS3461*10294-6835

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing