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BOSTON MARATHON 2025

Philip O'Brien

Bib: 2620•M

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 17%
Gender (Male)
#0 / 16105
Top 27%
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
20:47
Rank: #5337
Start → 5K
6:41/mi
20:47 split
10K· 6.21 mi
41:46
Rank: #5571 (-234)
5K → 10K
6:45/mi
20:59 split
15K· 9.32 mi
1:02:51
Rank: #5639 (-68)
10K → 15K
6:47/mi
21:05 split
20K· 12.43 mi
1:24:51
Rank: #6192 (-553)
15K → 20K
7:05/mi
22:00 split
Half· 13.11 mi
1:29:26
Rank: #6138 (+54)
20K → Half
6:43/mi
4:35 split
25K· 15.53 mi
1:45:57
Rank: #5895 (+243)
Half → 25K
6:49/mi
16:31 split
30K· 18.64 mi
2:07:59
Rank: #5707 (+188)
25K → 30K
7:06/mi
22:02 split
20M
2:17:45
Rank: #5645 (+62)
30K → 20M
7:11/mi
9:46 split
21M
2:24:50
Rank: #5406 (+239)
20M → 21M
7:05/mi
7:05 split
35K· 21.75 mi
2:29:48
Rank: #5290 (+116)
21M → 35K
6:38/mi
4:58 split
23M
2:38:36
Rank: #5159 (+131)
35K → 23M
7:02/mi
8:48 split
24M
2:45:24
Rank: #5059 (+100)
23M → 24M
6:48/mi
6:48 split
40K· 24.85 mi
2:51:17
Rank: #4962 (+97)
24M → 40K
6:53/mi
5:53 split
25.2M
2:53:50
Rank: #4903 (+59)
40K → 25.2M
7:24/mi
2:33 split
Finish· 26.22 mi
3:00:19
Rank: #4748 (+155)
25.2M → Finish
6:22/mi
6:29 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:26
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:30:53
Pace6:56 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4020:476:4120:47
6:41
-
10K
6.21 mi10:43:3941:466:4320:59
6:45
+0:04
15K
9.32 mi11:04:441:02:516:4521:05
6:47
+0:02
20K
12.43 mi11:26:441:24:516:5022:00
7:05
+0:18
Half
13.11 mi11:31:191:29:266:494:35
6:43
-0:22
25K
15.53 mi11:47:501:45:576:4916:31
6:49
+0:06
30K
18.64 mi12:09:522:07:596:5222:02
7:06
+0:17
20M
20.00 mi12:19:382:17:456:539:46
7:11
+0:05
21M
21.00 mi12:26:432:24:506:547:05
7:05
-0:06
35K
21.75 mi12:31:412:29:486:534:58
6:38
-0:27
23M
23.00 mi12:40:292:38:366:548:48
7:02
+0:24
24M
24.00 mi12:47:172:45:246:546:48
6:48
-0:14
40K
24.85 mi12:53:102:51:176:535:53
6:53
+0:05
25.2M
25.20 mi12:55:432:53:506:542:33
7:24
+0:31
Finish
26.22 mi13:02:123:00:196:536:29
6:22
-1:02

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

6:53 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:05

60% of race

Time at Steady Pace

1:12:14

40% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:53 /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 mi10:22:4020:476:4120:47
6:41
#5337
10K
6.21 mi10:43:3941:466:4320:59
6:45
#5571
15K
9.32 mi11:04:441:02:516:4521:05
6:47
#5639
20K
12.43 mi11:26:441:24:516:5022:00
7:05
#6192
Half
13.11 mi11:31:191:29:266:494:35
6:43
#6138
25K
15.53 mi11:47:501:45:576:4916:31
6:49
#5895
30K
18.64 mi12:09:522:07:596:5222:02
7:06
#5707
20M
20.00 mi12:19:382:17:456:539:46
7:11
#5645
21M
21.00 mi12:26:432:24:506:547:05
7:05
#5406
35K
21.75 mi12:31:412:29:486:534:58
6:38
#5290
23M
23.00 mi12:40:292:38:366:548:48
7:02
#5159
24M
24.00 mi12:47:172:45:246:546:48
6:48
#5059
40K
24.85 mi12:53:102:51:176:535:53
6:53
#4962
25.2M
25.20 mi12:55:432:53:506:542:33
7:24
#4903
Finish
26.22 mi13:02:123:00:196:536:29
6:22
#4748
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5337496149615934(Top 21%)5400(Top 34%)5400(Top 96%)
10K6.21 mi3.10 mi5571-2345149-1885149-1885865(Top 21%)5366(Top 33%)5366(Top 95%)
15K9.32 mi3.11 mi5639-685199-505199-505934(Top 21%)5400(Top 34%)5400(Top 96%)
20K12.43 mi3.11 mi6192-5535637-4385637-4387394(Top 26%)6481(Top 40%)6481(Top 115%)
Half13.11 mi0.68 mi6138+545592+455592+455366(Top 19%)4921(Top 31%)4921(Top 87%)
25K15.53 mi2.42 mi5895+2435373+2195373+2194948(Top 17%)4542(Top 28%)4542(Top 81%)
30K18.64 mi3.11 mi5707+1885204+1695204+1695257(Top 19%)4742(Top 29%)4742(Top 84%)
20M20.00 mi1.36 mi5645+625147+575147+575110(Top 18%)4559(Top 28%)4559(Top 81%)
21M21.00 mi1.00 mi5406+2394938+2094938+2092601(Top 9%)2423(Top 15%)2423(Top 43%)
35K21.75 mi0.75 mi5290+1164837+1014837+1013156(Top 11%)2898(Top 18%)2898(Top 51%)
23M23.00 mi1.25 mi5159+1314717+1204717+1203920(Top 14%)3509(Top 22%)3509(Top 62%)
24M24.00 mi1.00 mi5059+1004621+964621+963499(Top 12%)3134(Top 19%)3134(Top 56%)
40K24.85 mi0.85 mi4962+974531+904531+903253(Top 11%)2905(Top 18%)2905(Top 51%)
25.2M25.20 mi0.35 mi4903+594475+564475+562914(Top 10%)2593(Top 16%)2593(Top 46%)
Finish26.22 mi1.02 mi4748+1554344+1314344+1312145(Top 8%)1963(Top 12%)1963(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21story building
+97ft-345ft

Overall

5934

Males

5400

M18-39

5400

5K→10K

3.1 - 6.2 mi

Top 21%
×5story building
+79ft-138ft

Overall

5865

Males

5366

M18-39

5366

10K→15K

6.2 - 9.3 mi

Top 21%
×3story building
+67ft-78ft

Overall

5934

Males

5400

M18-39

5400

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

7394

Males

6481

M18-39

6481

20K→Half

12.4 - 13.1 mi

Top 19%
×2story building
+19ft-37ft

Overall

5366

Males

4921

M18-39

4921

Half→25K

13.1 - 15.5 mi

Top 17%
×4story building
+66ft-88ft

Overall

4948

Males

4542

M18-39

4542

25K→30K

15.5 - 18.6 mi

Top 19%
×9story building
+181ft-148ft

Overall

5257

Males

4742

M18-39

4742

30K→20M

18.6 - 20.0 mi

Top 18%
×5story building
+64ft-50ft

Overall

5110

Males

4559

M18-39

4559

20M→21M

20.0 - 21.0 mi

Top 9%
×8story building
+106ft-24ft

Overall

2601

Males

2423

M18-39

2423

21M→35K

21.0 - 21.8 mi

Top 11%
×7story building
+17ft-86ft

Overall

3156

Males

2898

M18-39

2898

35K→23M

21.8 - 23.0 mi

Top 14%
×5story building
+23ft-63ft

Overall

3920

Males

3509

M18-39

3509

23M→24M

23.0 - 24.0 mi

Top 12%
×6story building
+12ft-82ft

Overall

3499

Males

3134

M18-39

3134

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3253

Males

2905

M18-39

2905

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2914

Males

2593

M18-39

2593

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2story building
+22ft-21ft

Overall

2145

Males

1963

M18-39

1963

Passing Analysis

Category:
Athletes Passed
1861
Passed By
1272
Net Change
+589
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5337
5K → 10K84318-234#5337#5571
10K → 15K107175-68#5571#5639
15K → 20K43596-553#5639#6192
20K → Half617+54#6192#6138
Half → 25K26219+243#6138#5895
25K → 30K26577+188#5895#5707
30K → 20M10341+62#5707#5645
20M → 21M2390+239#5645#5406
21M → 35K1193+116#5406#5290
35K → 23M15019+131#5290#5159
23M → 24M1088+100#5159#5059
24M → 40K1036+97#5059#4962
40K → 25.2M601+59#4962#4903
25.2M → Finish1572+155#4903#4748
TOTALS18611272+589
📊

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