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BOSTON MARATHON 2025

Corey O'Donnell

Bib: 30175•M

NJ

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
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
28:30
Rank: #23114
Start → 5K
28:30 | 9:10/mi
10K· 6.21 mi
56:17
Rank: #22650 (+464)
5K → 10K
27:47 | 8:57/mi
15K· 9.32 mi
1:23:57
Rank: #22303 (+347)
10K → 15K
27:40 | 8:54/mi
20K· 12.43 mi
1:51:40
Rank: #21870 (+433)
15K → 20K
27:43 | 8:55/mi
Half· 13.11 mi
1:57:39
Rank: #21801 (+69)
20K → Half
5:59 | 8:46/mi
25K· 15.53 mi
2:19:21
Rank: #21433 (+368)
Half → 25K
21:42 | 8:57/mi
30K· 18.64 mi
2:48:08
Rank: #20960 (+473)
25K → 30K
28:47 | 9:16/mi
20M
3:00:55
Rank: #20778 (+182)
30K → 20M
12:47 | 9:24/mi
21M
3:10:48
Rank: #20583 (+195)
20M → 21M
9:53 | 9:53/mi
35K· 21.75 mi
3:17:29
Rank: #20498 (+85)
21M → 35K
6:41 | 8:56/mi
23M
3:29:07
Rank: #20340 (+158)
35K → 23M
11:38 | 9:17/mi
24M
3:38:26
Rank: #20295 (+45)
23M → 24M
9:19 | 9:19/mi
40K· 24.85 mi
3:46:28
Rank: #20233 (+62)
24M → 40K
8:02 | 9:24/mi
25.2M
3:50:02
Rank: #20204 (+29)
40K → 25.2M
3:34 | 10:21/mi
Finish· 26.22 mi
3:59:00
Rank: #20161 (+43)
25.2M → Finish
8:58 | 8:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:39
Pace8:58 /mi
2nd Half
Distance13.11 mi
Time2:01:21
Pace9:15 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2328:309:1028:30
9:10
-
10K
6.21 mi12:19:1056:179:0327:47
8:57
-0:13
15K
9.32 mi12:46:501:23:579:0027:40
8:54
-0:03
20K
12.43 mi13:14:331:51:408:5927:43
8:55
+0:01
Half
13.11 mi13:20:321:57:398:585:59
8:46
-0:09
25K
15.53 mi13:42:142:19:218:5821:42
8:57
+0:11
30K
18.64 mi14:11:012:48:089:0128:47
9:16
+0:19
20M
20.00 mi14:23:483:00:559:0312:47
9:24
+0:08
21M
21.00 mi14:33:413:10:489:059:53
9:53
+0:29
35K
21.75 mi14:40:223:17:299:056:41
8:56
-0:57
23M
23.00 mi14:52:003:29:079:0611:38
9:17
+0:21
24M
24.00 mi15:01:193:38:269:069:19
9:19
+0:02
40K
24.85 mi15:09:213:46:289:078:02
9:24
+0:05
25.2M
25.20 mi15:12:553:50:029:083:34
10:21
+0:57
Finish
26.22 mi15:21:533:59:009:078:58
8:48
-1:33

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

8:46 /mi

Average Pace

9:07 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:45:33

94% of race

Time at Steady Pace

9:53

4% of race

Time at Slower Pace

3:34

1% of race

Average Pace: 9:07 /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 mi11:51:2328:309:1028:30
9:10
#23114
10K
6.21 mi12:19:1056:179:0327:47
8:57
#22650
15K
9.32 mi12:46:501:23:579:0027:40
8:54
#22303
20K
12.43 mi13:14:331:51:408:5927:43
8:55
#21870
Half
13.11 mi13:20:321:57:398:585:59
8:46
#21801
25K
15.53 mi13:42:142:19:218:5821:42
8:57
#21433
30K
18.64 mi14:11:012:48:089:0128:47
9:16
#20960
20M
20.00 mi14:23:483:00:559:0312:47
9:24
#20778
21M
21.00 mi14:33:413:10:489:059:53
9:53
#20583
35K
21.75 mi14:40:223:17:299:056:41
8:56
#20498
23M
23.00 mi14:52:003:29:079:0611:38
9:17
#20340
24M
24.00 mi15:01:193:38:269:069:19
9:19
#20295
40K
24.85 mi15:09:213:46:289:078:02
9:24
#20233
25.2M
25.20 mi15:12:553:50:029:083:34
10:21
#20204
Finish
26.22 mi15:21:533:59:009:078:58
8:48
#20161
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23114138171381721587(Top 76%)13203(Top 82%)13203(Top 234%)
10K6.21 mi3.10 mi22650+46413625+19213625+19222120(Top 78%)13392(Top 83%)13392(Top 237%)
15K9.32 mi3.11 mi22303+34713486+13913486+13921587(Top 76%)13203(Top 82%)13203(Top 234%)
20K12.43 mi3.11 mi21870+43313278+20813278+20820573(Top 72%)12700(Top 79%)12700(Top 225%)
Half13.11 mi0.68 mi21801+6913248+3013248+3020728(Top 73%)12782(Top 79%)12782(Top 227%)
25K15.53 mi2.42 mi21433+36813085+16313085+16319677(Top 69%)12271(Top 76%)12271(Top 217%)
30K18.64 mi3.11 mi20960+47312834+25112834+25118954(Top 67%)11813(Top 73%)11813(Top 209%)
20M20.00 mi1.36 mi20778+18212738+9612738+9618771(Top 66%)11578(Top 72%)11578(Top 205%)
21M21.00 mi1.00 mi20583+19512631+10712631+10717842(Top 63%)11091(Top 69%)11091(Top 197%)
35K21.75 mi0.75 mi20498+8512579+5212579+5217920(Top 63%)11023(Top 68%)11023(Top 195%)
23M23.00 mi1.25 mi20340+15812475+10412475+10417734(Top 62%)10838(Top 67%)10838(Top 192%)
24M24.00 mi1.00 mi20295+4512441+3412441+3418879(Top 66%)11352(Top 70%)11352(Top 201%)
40K24.85 mi0.85 mi20233+6212391+5012391+5018258(Top 64%)10964(Top 68%)10964(Top 194%)
25.2M25.20 mi0.35 mi20204+2912379+1212379+1218434(Top 65%)11042(Top 69%)11042(Top 196%)
Finish26.22 mi1.02 mi20161+4312344+3512344+3518024(Top 63%)10887(Top 68%)10887(Top 193%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

21587

Males

13203

M18-39

13203

5K→10K

3.1 - 6.2 mi

Top 78%
×5stories
+79ft-138ft

Overall

22120

Males

13392

M18-39

13392

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

21587

Males

13203

M18-39

13203

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

20573

Males

12700

M18-39

12700

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

20728

Males

12782

M18-39

12782

Half→25K

13.1 - 15.5 mi

Top 69%
×4stories
+66ft-88ft

Overall

19677

Males

12271

M18-39

12271

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

18954

Males

11813

M18-39

11813

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

18771

Males

11578

M18-39

11578

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

17842

Males

11091

M18-39

11091

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

17920

Males

11023

M18-39

11023

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

17734

Males

10838

M18-39

10838

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

18879

Males

11352

M18-39

11352

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18258

Males

10964

M18-39

10964

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18434

Males

11042

M18-39

11042

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

18024

Males

10887

M18-39

10887

Passing Analysis

Category:
Athletes Passed
3295
Passed By
342
Net Change
+2953
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23114
5K → 10K52965+464#23114#22650
10K → 15K40053+347#22650#22303
15K → 20K45219+433#22303#21870
20K → Half723+69#21870#21801
Half → 25K3768+368#21801#21433
25K → 30K49118+473#21433#20960
30K → 20M20220+182#20960#20778
20M → 21M21318+195#20778#20583
21M → 35K938+85#20583#20498
35K → 23M17820+158#20498#20340
23M → 24M7732+45#20340#20295
24M → 40K8826+62#20295#20233
40K → 25.2M4415+29#20233#20204
25.2M → Finish8037+43#20204#20161
TOTALS3295342+2953
📊

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