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BOSTON MARATHON 2025

Robert O'Donnell

Bib: 28238•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M40-44)
#0 / 2247
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
9:13/mi
28:37
↑ 97↓ 3451.5%
10K· 6.21 mi
9:05/mi
56:50
↑ 79↓ 1380.4%
15K· 9.32 mi
8:54/mi
1:24:29
↑ 67↓ 78
20K· 12.43 mi
9:16/mi
1:53:16
↑ 106↓ 860.1%
Half· 13.11 mi
8:48/mi
1:59:16
↑ 19↓ 370.5%
25K· 15.53 mi
9:46/mi
2:22:57
↑ 66↓ 880.2%
30K· 18.64 mi
9:48/mi
2:53:23
↑ 181↓ 1480.2%
20M
10:35/mi
3:07:46
↑ 64↓ 500.2%
21M
11:24/mi
3:19:10
↑ 106↓ 241.6%
35K· 21.75 mi
10:44/mi
3:27:12
↑ 17↓ 861.7%
23M
9:57/mi
3:39:39
↑ 23↓ 630.6%
24M
9:56/mi
3:49:35
↓ 821.3%
40K· 24.85 mi
10:54/mi
3:58:54
↓ 200.3%
25.2M
11:10/mi
4:02:45
↑ 13↓ 160.2%
Finish· 26.22 mi
9:19/mi
4:12:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:16
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:12:59
Pace10:09 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:0028:379:1328:37
9:13
-
10K
6.21 mi12:14:1356:509:0928:13
9:05
-0:08
15K
9.32 mi12:41:521:24:299:0427:39
8:54
-0:11
20K
12.43 mi13:10:391:53:169:0728:47
9:16
+0:22
Half
13.11 mi13:16:391:59:169:066:00
8:48
-0:28
25K
15.53 mi13:40:202:22:579:1223:41
9:46
+0:58
30K
18.64 mi14:10:462:53:239:1830:26
9:48
+0:02
20M
20.00 mi14:25:093:07:469:2314:23
10:35
+0:47
21M
21.00 mi14:36:333:19:109:2911:24
11:24
+0:49
35K
21.75 mi14:44:353:27:129:328:02
10:44
-0:40
23M
23.00 mi14:57:023:39:399:3312:27
9:57
-0:47
24M
24.00 mi15:06:583:49:359:349:56
9:56
-0:01
40K
24.85 mi15:16:173:58:549:379:19
10:54
+0:58
25.2M
25.20 mi15:20:084:02:459:383:51
11:10
+0:16
Finish
26.22 mi15:29:384:12:159:389:30
9:19
-1:51

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

8:48 /mi

Average Pace

9:38 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:46

51% of race

Time at Steady Pace

1:16:30

30% of race

Time at Slower Pace

46:59

19% of race

Average Pace: 9:37 /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 mi11:46:0028:379:1328:37
9:13
#23267
10K
6.21 mi12:14:1356:509:0928:13
9:05
#23004
15K
9.32 mi12:41:521:24:299:0427:39
8:54
#22556
20K
12.43 mi13:10:391:53:169:0728:47
9:16
#22420
Half
13.11 mi13:16:391:59:169:066:00
8:48
#22336
25K
15.53 mi13:40:202:22:579:1223:41
9:46
#22439
30K
18.64 mi14:10:462:53:239:1830:26
9:48
#22164
20M
20.00 mi14:25:093:07:469:2314:23
10:35
#22212
21M
21.00 mi14:36:333:19:109:2911:24
11:24
#22189
35K
21.75 mi14:44:353:27:129:328:02
10:44
#22269
23M
23.00 mi14:57:023:39:399:3312:27
9:57
#22127
24M
24.00 mi15:06:583:49:359:349:56
9:56
#22080
40K
24.85 mi15:16:173:58:549:379:19
10:54
#22119
25.2M
25.20 mi15:20:084:02:459:383:51
11:10
#22088
Finish
26.22 mi15:29:384:12:159:389:30
9:19
#22022
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi23267138901389021566(Top 76%)13197(Top 82%)13197(Top 587%)
10K6.21 mi3.10 mi23004+26313788+10213788+10222738(Top 80%)13683(Top 85%)13683(Top 609%)
15K9.32 mi3.11 mi22556+44813610+17813610+17821566(Top 76%)13197(Top 82%)13197(Top 587%)
20K12.43 mi3.11 mi22420+13613535+7513535+7522150(Top 78%)13423(Top 83%)13423(Top 597%)
Half13.11 mi0.68 mi22336+8413491+4413491+4420872(Top 73%)12848(Top 80%)12848(Top 572%)
25K15.53 mi2.42 mi22439-10313547-5613547-5622684(Top 80%)13597(Top 84%)13597(Top 605%)
30K18.64 mi3.11 mi22164+27513393+15413393+15420982(Top 74%)12711(Top 79%)12711(Top 566%)
20M20.00 mi1.36 mi22212-48133931339322646(Top 80%)13360(Top 83%)13360(Top 595%)
21M21.00 mi1.00 mi22189+2313359+3413359+3422388(Top 79%)13144(Top 82%)13144(Top 585%)
35K21.75 mi0.75 mi22269-8013379-2013379-2023653(Top 83%)13712(Top 85%)13712(Top 610%)
23M23.00 mi1.25 mi22127+14213277+10213277+10220298(Top 71%)12052(Top 75%)12052(Top 536%)
24M24.00 mi1.00 mi22080+4713241+3613241+3621164(Top 75%)12427(Top 77%)12427(Top 553%)
40K24.85 mi0.85 mi22119-3913235+613235+622888(Top 81%)13185(Top 82%)13185(Top 587%)
25.2M25.20 mi0.35 mi22088+3113215+2013215+2021107(Top 74%)12348(Top 77%)12348(Top 550%)
Finish26.22 mi1.02 mi22022+6613175+4013175+4020471(Top 72%)12046(Top 75%)12046(Top 536%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

21566

Males

13197

M40-44

13197

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

22738

Males

13683

M40-44

13683

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

21566

Males

13197

M40-44

13197

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

22150

Males

13423

M40-44

13423

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

20872

Males

12848

M40-44

12848

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

22684

Males

13597

M40-44

13597

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

20982

Males

12711

M40-44

12711

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22646

Males

13360

M40-44

13360

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

22388

Males

13144

M40-44

13144

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

23653

Males

13712

M40-44

13712

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

20298

Males

12052

M40-44

12052

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

21164

Males

12427

M40-44

12427

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

22888

Males

13185

M40-44

13185

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

21107

Males

12348

M40-44

12348

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

20471

Males

12046

M40-44

12046

Passing Analysis

Category:
Athletes Passed
2183
Passed By
938
Net Change
+1245
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23267
5K → 10K380117+263#23267#23004
10K → 15K46618+448#23004#22556
15K → 20K23498+136#22556#22420
20K → Half906+84#22420#22336
Half → 25K111214-103#22336#22439
25K → 30K33257+275#22439#22164
30K → 20M65113-48#22164#22212
20M → 21M9269+23#22212#22189
21M → 35K20100-80#22189#22269
35K → 23M16321+142#22269#22127
23M → 24M6114+47#22127#22080
24M → 40K3574-39#22080#22119
40K → 25.2M4413+31#22119#22088
25.2M → Finish9024+66#22088#22022
TOTALS2183938+1245
📊

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