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BOSTON MARATHON 2025

Michael O'Donnell

Bib: 15271•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 39%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 41%
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ 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
7:42/mi
23:56
↑ 97↓ 3451.5%
10K· 6.21 mi
7:41/mi
47:49
↑ 79↓ 1380.4%
15K· 9.32 mi
7:38/mi
1:11:33
↑ 67↓ 78
20K· 12.43 mi
7:39/mi
1:35:18
↑ 106↓ 860.1%
Half· 13.11 mi
7:24/mi
1:40:21
↑ 19↓ 370.5%
25K· 15.53 mi
7:39/mi
1:58:55
↑ 66↓ 880.2%
30K· 18.64 mi
7:56/mi
2:23:35
↑ 181↓ 1480.2%
20M
8:16/mi
2:34:49
↑ 64↓ 500.2%
21M
8:22/mi
2:43:11
↑ 106↓ 241.6%
35K· 21.75 mi
7:34/mi
2:48:51
↑ 17↓ 861.7%
23M
7:39/mi
2:58:26
↑ 23↓ 630.6%
24M
7:48/mi
3:06:14
↓ 821.3%
40K· 24.85 mi
7:35/mi
3:12:43
↓ 200.3%
25.2M
8:13/mi
3:15:33
↑ 13↓ 160.2%
Finish· 26.22 mi
7:22/mi
3:23:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:21
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:42:42
Pace7:50 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:0423:567:4223:56
7:42
-
10K
6.21 mi11:19:5747:497:4223:53
7:41
-0:01
15K
9.32 mi11:43:411:11:337:4123:44
7:38
-0:03
20K
12.43 mi12:07:261:35:187:4023:45
7:39
+0:01
Half
13.11 mi12:12:291:40:217:395:03
7:24
-0:15
25K
15.53 mi12:31:031:58:557:3918:34
7:39
+0:15
30K
18.64 mi12:55:432:23:357:4224:40
7:56
+0:17
20M
20.00 mi13:06:572:34:497:4411:14
8:16
+0:20
21M
21.00 mi13:15:192:43:117:468:22
8:22
+0:06
35K
21.75 mi13:20:592:48:517:465:40
7:34
-0:48
23M
23.00 mi13:30:342:58:267:459:35
7:39
+0:05
24M
24.00 mi13:38:223:06:147:467:48
7:48
+0:09
40K
24.85 mi13:44:513:12:437:456:29
7:35
-0:13
25.2M
25.20 mi13:47:413:15:337:462:50
8:13
+0:38
Finish
26.22 mi13:55:113:23:037:457:30
7:22
-0:51

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

7:22 /mi

Average Pace

7:45 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:37

89% of race

Time at Steady Pace

22:26

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:45 /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 mi10:56:0423:567:4223:56
7:42
#13990
10K
6.21 mi11:19:5747:497:4223:53
7:41
#13877
15K
9.32 mi11:43:411:11:337:4123:44
7:38
#13540
20K
12.43 mi12:07:261:35:187:4023:45
7:39
#13090
Half
13.11 mi12:12:291:40:217:395:03
7:24
#12942
25K
15.53 mi12:31:031:58:557:3918:34
7:39
#12638
30K
18.64 mi12:55:432:23:357:4224:40
7:56
#12289
20M
20.00 mi13:06:572:34:497:4411:14
8:16
#12246
21M
21.00 mi13:15:192:43:117:468:22
8:22
#12063
35K
21.75 mi13:20:592:48:517:465:40
7:34
#11922
23M
23.00 mi13:30:342:58:267:459:35
7:39
#11623
24M
24.00 mi13:38:223:06:147:467:48
7:48
#11492
40K
24.85 mi13:44:513:12:437:456:29
7:35
#11295
25.2M
25.20 mi13:47:413:15:337:462:50
8:13
#11192
Finish
26.22 mi13:55:113:23:037:457:30
7:22
#11050
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi13990100431004312941(Top 46%)9489(Top 59%)9489(Top 398%)
10K6.21 mi3.10 mi13877+1139967+769967+7613743(Top 48%)9893(Top 61%)9893(Top 415%)
15K9.32 mi3.11 mi13540+3379791+1769791+17612941(Top 46%)9489(Top 59%)9489(Top 398%)
20K12.43 mi3.11 mi13090+4509558+2339558+23311896(Top 42%)8917(Top 55%)8917(Top 374%)
Half13.11 mi0.68 mi12942+1489487+719487+7110842(Top 38%)8467(Top 53%)8467(Top 355%)
25K15.53 mi2.42 mi12638+3049335+1529335+15211201(Top 39%)8484(Top 53%)8484(Top 356%)
30K18.64 mi3.11 mi12289+3499106+2299106+22910940(Top 39%)8163(Top 51%)8163(Top 342%)
20M20.00 mi1.36 mi12246+439048+589048+5812238(Top 43%)8635(Top 54%)8635(Top 362%)
21M21.00 mi1.00 mi12063+1838928+1208928+1209631(Top 34%)7174(Top 45%)7174(Top 301%)
35K21.75 mi0.75 mi11922+1418840+888840+889153(Top 32%)6943(Top 43%)6943(Top 291%)
23M23.00 mi1.25 mi11623+2998653+1878653+1877614(Top 27%)5944(Top 37%)5944(Top 249%)
24M24.00 mi1.00 mi11492+1318549+1048549+1049793(Top 34%)7064(Top 44%)7064(Top 296%)
40K24.85 mi0.85 mi11295+1978422+1278422+1277314(Top 26%)5620(Top 35%)5620(Top 236%)
25.2M25.20 mi0.35 mi11192+1038354+688354+687157(Top 25%)5447(Top 34%)5447(Top 228%)
Finish26.22 mi1.02 mi11050+1428253+1018253+1018195(Top 29%)6028(Top 37%)6028(Top 253%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12941

Males

9489

M45-49

9489

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

13743

Males

9893

M45-49

9893

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12941

Males

9489

M45-49

9489

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11896

Males

8917

M45-49

8917

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10842

Males

8467

M45-49

8467

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

11201

Males

8484

M45-49

8484

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10940

Males

8163

M45-49

8163

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

12238

Males

8635

M45-49

8635

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

9631

Males

7174

M45-49

7174

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

9153

Males

6943

M45-49

6943

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7614

Males

5944

M45-49

5944

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9793

Males

7064

M45-49

7064

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7314

Males

5620

M45-49

5620

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

7157

Males

5447

M45-49

5447

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

8195

Males

6028

M45-49

6028

Passing Analysis

Category:
Athletes Passed
3527
Passed By
587
Net Change
+2940
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13990
5K → 10K335222+113#13990#13877
10K → 15K39962+337#13877#13540
15K → 20K46818+450#13540#13090
20K → Half1491+148#13090#12942
Half → 25K32824+304#12942#12638
25K → 30K42374+349#12638#12289
30K → 20M14198+43#12289#12246
20M → 21M20623+183#12246#12063
21M → 35K1465+141#12063#11922
35K → 23M3089+299#11922#11623
23M → 24M15827+131#11623#11492
24M → 40K2047+197#11492#11295
40K → 25.2M1052+103#11295#11192
25.2M → Finish15715+142#11192#11050
TOTALS3527587+2940
📊

Passing Visuals

Category:
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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