Boston Marathon logo
BOSTON MARATHON 2025

Gerald Cahill

Bib: 30174•M

MA

0:00
0:00
/ mi
Be the first to cheer!
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
28:03
Rank: #22537
Start → 5K
28:03 | 9:02/mi
10K· 6.21 mi
54:47
Rank: #21532 (+1005)
5K → 10K
26:44 | 8:36/mi
15K· 9.32 mi
1:22:20
Rank: #21453 (+79)
10K → 15K
27:33 | 8:52/mi
20K· 12.43 mi
1:49:39
Rank: #21037 (+416)
15K → 20K
27:19 | 8:48/mi
Half· 13.11 mi
1:55:35
Rank: #21009 (+28)
20K → Half
5:56 | 8:42/mi
25K· 15.53 mi
2:17:43
Rank: #20930 (+79)
Half → 25K
22:08 | 9:08/mi
30K· 18.64 mi
2:50:32
Rank: #21538 (-608)
25K → 30K
32:49 | 10:34/mi
20M
3:05:40
Rank: #21803 (-265)
30K → 20M
15:08 | 11:08/mi
21M
3:17:48
Rank: #21976 (-173)
20M → 21M
12:08 | 12:08/mi
35K· 21.75 mi
3:26:24
Rank: #22141 (-165)
21M → 35K
8:36 | 11:30/mi
23M
3:40:21
Rank: #22220 (-79)
35K → 23M
13:57 | 11:08/mi
24M
3:51:49
Rank: #22374 (-154)
23M → 24M
11:28 | 11:28/mi
40K· 24.85 mi
4:02:36
Rank: #22568 (-194)
24M → 40K
10:47 | 12:37/mi
25.2M
4:06:31
Rank: #22554 (+14)
40K → 25.2M
3:55 | 11:21/mi
Finish· 26.22 mi
4:15:57
Rank: #22470 (+84)
25.2M → Finish
9:26 | 9:15/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:35
Pace8:49 /mi
2nd Half
Distance13.11 mi
Time2:20:22
Pace10:42 /mi
📊Positive Split: 21.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:1328:039:0228:03
9:02
-
10K
6.21 mi12:15:5754:478:4926:44
8:36
-0:26
15K
9.32 mi12:43:301:22:208:5027:33
8:52
+0:16
20K
12.43 mi13:10:491:49:398:4927:19
8:48
-0:04
Half
13.11 mi13:16:451:55:358:495:56
8:42
-0:06
25K
15.53 mi13:38:532:17:438:5222:08
9:08
+0:26
30K
18.64 mi14:11:422:50:329:0932:49
10:34
+1:26
20M
20.00 mi14:26:503:05:409:1715:08
11:08
+0:34
21M
21.00 mi14:38:583:17:489:2512:08
12:08
+1:00
35K
21.75 mi14:47:343:26:249:298:36
11:30
-0:38
23M
23.00 mi15:01:313:40:219:3513:57
11:08
-0:22
24M
24.00 mi15:12:593:51:499:4011:28
11:28
+0:20
40K
24.85 mi15:23:464:02:369:4610:47
12:37
+1:09
25.2M
25.20 mi15:27:414:06:319:473:55
11:21
-1:16
Finish
26.22 mi15:37:074:15:579:469:26
9:15
-2:06

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

8:36 /mi

Average Pace

9:46 /mi

Slowest Pace

12:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:09

57% of race

Time at Steady Pace

1:01:54

24% of race

Time at Slower Pace

46:54

18% of race

Average Pace: 9:46 /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 mi11:49:1328:039:0228:03
9:02
#22537
10K
6.21 mi12:15:5754:478:4926:44
8:36
#21532
15K
9.32 mi12:43:301:22:208:5027:33
8:52
#21453
20K
12.43 mi13:10:491:49:398:4927:19
8:48
#21037
Half
13.11 mi13:16:451:55:358:495:56
8:42
#21009
25K
15.53 mi13:38:532:17:438:5222:08
9:08
#20930
30K
18.64 mi14:11:422:50:329:0932:49
10:34
#21538
20M
20.00 mi14:26:503:05:409:1715:08
11:08
#21803
21M
21.00 mi14:38:583:17:489:2512:08
12:08
#21976
35K
21.75 mi14:47:343:26:249:298:36
11:30
#22141
23M
23.00 mi15:01:313:40:219:3513:57
11:08
#22220
24M
24.00 mi15:12:593:51:499:4011:28
11:28
#22374
40K
24.85 mi15:23:464:02:369:4610:47
12:37
#22568
25.2M
25.20 mi15:27:414:06:319:473:55
11:21
#22554
Finish
26.22 mi15:37:074:15:579:469:26
9:15
#22470
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22537135481354821378(Top 75%)13119(Top 81%)13119(Top 233%)
10K6.21 mi3.10 mi21532+100513114+43413114+43420380(Top 72%)12647(Top 79%)12647(Top 224%)
15K9.32 mi3.11 mi21453+7913115-113115-121378(Top 75%)13119(Top 81%)13119(Top 233%)
20K12.43 mi3.11 mi21037+41612926+18912926+18919899(Top 70%)12418(Top 77%)12418(Top 220%)
Half13.11 mi0.68 mi21009+2812917+912917+920342(Top 72%)12634(Top 78%)12634(Top 224%)
25K15.53 mi2.42 mi20930+7912871+4612871+4620481(Top 72%)12632(Top 78%)12632(Top 224%)
30K18.64 mi3.11 mi21538-60813105-23413105-23423074(Top 81%)13652(Top 85%)13652(Top 242%)
20M20.00 mi1.36 mi21803-26513216-11113216-11123854(Top 84%)13913(Top 86%)13913(Top 247%)
21M21.00 mi1.00 mi21976-17313268-5213268-5223814(Top 84%)13824(Top 86%)13824(Top 245%)
35K21.75 mi0.75 mi22141-16513324-5613324-5625083(Top 88%)14387(Top 89%)14387(Top 255%)
23M23.00 mi1.25 mi22220-7913317+713317+723540(Top 83%)13610(Top 85%)13610(Top 241%)
24M24.00 mi1.00 mi22374-15413367-5013367-5024837(Top 87%)14220(Top 88%)14220(Top 252%)
40K24.85 mi0.85 mi22568-19413439-7213439-7225806(Top 91%)14693(Top 91%)14693(Top 260%)
25.2M25.20 mi0.35 mi22554+1413427+1213427+1221666(Top 76%)12623(Top 78%)12623(Top 224%)
Finish26.22 mi1.02 mi22470+8413366+6113366+6120207(Top 71%)11905(Top 74%)11905(Top 211%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

21378

Males

13119

M18-39

13119

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

20380

Males

12647

M18-39

12647

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

21378

Males

13119

M18-39

13119

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

19899

Males

12418

M18-39

12418

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

20342

Males

12634

M18-39

12634

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

20481

Males

12632

M18-39

12632

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

23074

Males

13652

M18-39

13652

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

23854

Males

13913

M18-39

13913

20M→21M

20.0 - 21.0 mi

Top 84%
×8stories
+106ft-24ft

Overall

23814

Males

13824

M18-39

13824

21M→35K

21.0 - 21.8 mi

Top 88%
×7stories
+17ft-86ft

Overall

25083

Males

14387

M18-39

14387

35K→23M

21.8 - 23.0 mi

Top 83%
×5stories
+23ft-63ft

Overall

23540

Males

13610

M18-39

13610

23M→24M

23.0 - 24.0 mi

Top 87%
×6stories
+12ft-82ft

Overall

24837

Males

14220

M18-39

14220

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25806

Males

14693

M18-39

14693

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21666

Males

12623

M18-39

12623

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2stories
+22ft-21ft

Overall

20207

Males

11905

M18-39

11905

Passing Analysis

Category:
Athletes Passed
2321
Passed By
2254
Net Change
+67
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22537
5K → 10K103227+1005#22537#21532
10K → 15K246167+79#21532#21453
15K → 20K44832+416#21453#21037
20K → Half4820+28#21037#21009
Half → 25K180101+79#21009#20930
25K → 30K77685-608#20930#21538
30K → 20M24289-265#21538#21803
20M → 21M35208-173#21803#21976
21M → 35K11176-165#21976#22141
35K → 23M59138-79#22141#22220
23M → 24M24178-154#22220#22374
24M → 40K10204-194#22374#22568
40K → 25.2M2713+14#22568#22554
25.2M → Finish10016+84#22554#22470
TOTALS23212254+67
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing