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BOSTON MARATHON 2025

Patrick O'Brien

Bib: 5325•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 23%
Division (M18-39)
#0 / 5642
Top 48%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:50
Rank: #5482
Start → 5K
20:50 | 6:42/mi
10K· 6.21 mi
42:22
Rank: #6472 (-990)
5K → 10K
21:32 | 6:56/mi
15K· 9.32 mi
1:03:03
Rank: #5857 (+615)
10K → 15K
20:41 | 6:39/mi
20K· 12.43 mi
1:23:48
Rank: #5408 (+449)
15K → 20K
20:45 | 6:41/mi
Half· 13.11 mi
1:28:21
Rank: #5362 (+46)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:44:38
Rank: #5121 (+241)
Half → 25K
16:17 | 6:43/mi
30K· 18.64 mi
2:06:11
Rank: #4905 (+216)
25K → 30K
21:33 | 6:56/mi
20M
2:15:36
Rank: #4775 (+130)
30K → 20M
9:25 | 6:56/mi
21M
2:22:45
Rank: #4596 (+179)
20M → 21M
7:09 | 7:09/mi
35K· 21.75 mi
2:27:48
Rank: #4529 (+67)
21M → 35K
5:03 | 6:45/mi
23M
2:36:32
Rank: #4421 (+108)
35K → 23M
8:44 | 6:59/mi
24M
2:43:18
Rank: #4338 (+83)
23M → 24M
6:46 | 6:46/mi
40K· 24.85 mi
2:49:02
Rank: #4225 (+113)
24M → 40K
5:44 | 6:42/mi
25.2M
2:51:34
Rank: #4176 (+49)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
2:58:11
Rank: #4082 (+94)
25.2M → Finish
6:37 | 6:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:21
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:29:50
Pace6:51 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:4920:506:4220:50
6:42
-
10K
6.21 mi10:47:2142:226:4921:32
6:56
+0:14
15K
9.32 mi11:08:021:03:036:4620:41
6:39
-0:17
20K
12.43 mi11:28:471:23:486:4520:45
6:41
+0:02
Half
13.11 mi11:33:201:28:216:444:33
6:40
-0:01
25K
15.53 mi11:49:371:44:386:4416:17
6:43
+0:03
30K
18.64 mi12:11:102:06:116:4621:33
6:56
+0:13
20M
20.00 mi12:20:352:15:366:479:25
6:56
0:00
21M
21.00 mi12:27:442:22:456:487:09
7:09
+0:13
35K
21.75 mi12:32:472:27:486:485:03
6:45
-0:24
23M
23.00 mi12:41:312:36:326:488:44
6:59
+0:14
24M
24.00 mi12:48:172:43:186:486:46
6:46
-0:13
40K
24.85 mi12:54:012:49:026:485:44
6:42
-0:04
25.2M
25.20 mi12:56:332:51:346:482:32
7:21
+0:39
Finish
26.22 mi13:03:102:58:116:486:37
6:30
-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

6:30 /mi

Average Pace

6:48 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:30

95% of race

Time at Steady Pace

9:41

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:48 /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 mi10:25:4920:506:4220:50
6:42
#5482
10K
6.21 mi10:47:2142:226:4921:32
6:56
#6472
15K
9.32 mi11:08:021:03:036:4620:41
6:39
#5857
20K
12.43 mi11:28:471:23:486:4520:45
6:41
#5408
Half
13.11 mi11:33:201:28:216:444:33
6:40
#5362
25K
15.53 mi11:49:371:44:386:4416:17
6:43
#5121
30K
18.64 mi12:11:102:06:116:4621:33
6:56
#4905
20M
20.00 mi12:20:352:15:366:479:25
6:56
#4775
21M
21.00 mi12:27:442:22:456:487:09
7:09
#4596
35K
21.75 mi12:32:472:27:486:485:03
6:45
#4529
23M
23.00 mi12:41:312:36:326:488:44
6:59
#4421
24M
24.00 mi12:48:172:43:186:486:46
6:46
#4338
40K
24.85 mi12:54:012:49:026:485:44
6:42
#4225
25.2M
25.20 mi12:56:332:51:346:482:32
7:21
#4176
Finish
26.22 mi13:03:102:58:116:486:37
6:30
#4082
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5482508450844700(Top 17%)4393(Top 27%)4393(Top 78%)
10K6.21 mi3.10 mi6472-9905890-8065890-8067454(Top 26%)6601(Top 41%)6601(Top 117%)
15K9.32 mi3.11 mi5857+6155375+5155375+5154700(Top 17%)4393(Top 27%)4393(Top 78%)
20K12.43 mi3.11 mi5408+4494997+3784997+3784238(Top 15%)3966(Top 25%)3966(Top 70%)
Half13.11 mi0.68 mi5362+464959+384959+384944(Top 17%)4573(Top 28%)4573(Top 81%)
25K15.53 mi2.42 mi5121+2414746+2134746+2134243(Top 15%)3939(Top 24%)3939(Top 70%)
30K18.64 mi3.11 mi4905+2164534+2124534+2124302(Top 15%)3945(Top 24%)3945(Top 70%)
20M20.00 mi1.36 mi4775+1304422+1124422+1123673(Top 13%)3379(Top 21%)3379(Top 60%)
21M21.00 mi1.00 mi4596+1794262+1604262+1602897(Top 10%)2683(Top 17%)2683(Top 48%)
35K21.75 mi0.75 mi4529+674196+664196+663789(Top 13%)3411(Top 21%)3411(Top 60%)
23M23.00 mi1.25 mi4421+1084093+1034093+1033596(Top 13%)3252(Top 20%)3252(Top 58%)
24M24.00 mi1.00 mi4338+834005+884005+883311(Top 12%)2977(Top 18%)2977(Top 53%)
40K24.85 mi0.85 mi4225+1133902+1033902+1032388(Top 8%)2185(Top 14%)2185(Top 39%)
25.2M25.20 mi0.35 mi4176+493855+473855+472730(Top 10%)2432(Top 15%)2432(Top 43%)
Finish26.22 mi1.02 mi4082+943769+863769+862778(Top 10%)2485(Top 15%)2485(Top 44%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4700

Males

4393

M18-39

4393

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7454

Males

6601

M18-39

6601

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4700

Males

4393

M18-39

4393

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4238

Males

3966

M18-39

3966

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4944

Males

4573

M18-39

4573

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4243

Males

3939

M18-39

3939

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4302

Males

3945

M18-39

3945

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3673

Males

3379

M18-39

3379

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2897

Males

2683

M18-39

2683

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3789

Males

3411

M18-39

3411

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3596

Males

3252

M18-39

3252

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3311

Males

2977

M18-39

2977

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2388

Males

2185

M18-39

2185

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2730

Males

2432

M18-39

2432

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2778

Males

2485

M18-39

2485

Passing Analysis

Category:
Athletes Passed
2577
Passed By
1177
Net Change
+1400
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5482
5K → 10K221012-990#5482#6472
10K → 15K6227+615#6472#5857
15K → 20K4534+449#5857#5408
20K → Half5610+46#5408#5362
Half → 25K25413+241#5362#5121
25K → 30K26953+216#5121#4905
30K → 20M14111+130#4905#4775
20M → 21M1878+179#4775#4596
21M → 35K747+67#4596#4529
35K → 23M12618+108#4529#4421
23M → 24M9815+83#4421#4338
24M → 40K1218+113#4338#4225
40K → 25.2M523+49#4225#4176
25.2M → Finish1028+94#4176#4082
TOTALS25771177+1400
📊

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