Boston Marathon logo
BOSTON MARATHON 2025

Geoffrey Crow

Bib: 2282•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 5%
Masters (Masters Men)
#0 / 10463
Top 1%
Division (M40-44)
#0 / 2247
Top 4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:16
Rank: #751
Start → 5K
18:16 | 5:53/mi
10K· 6.21 mi
36:46
Rank: #856 (-105)
5K → 10K
18:30 | 5:57/mi
15K· 9.32 mi
55:22
Rank: #898 (-42)
10K → 15K
18:36 | 5:59/mi
20K· 12.43 mi
1:14:16
Rank: #930 (-32)
15K → 20K
18:54 | 6:05/mi
Half· 13.11 mi
1:18:16
Rank: #925 (+5)
20K → Half
4:00 | 5:52/mi
25K· 15.53 mi
1:32:57
Rank: #909 (+16)
Half → 25K
14:41 | 6:03/mi
30K· 18.64 mi
1:52:40
Rank: #943 (-34)
25K → 30K
19:43 | 6:21/mi
20M
2:01:20
Rank: #936 (+7)
30K → 20M
8:40 | 6:23/mi
21M
2:07:57
Rank: #913 (+23)
20M → 21M
6:37 | 6:37/mi
35K· 21.75 mi
2:12:38
Rank: #915 (-2)
21M → 35K
4:41 | 6:16/mi
23M
2:20:36
Rank: #909 (+6)
35K → 23M
7:58 | 6:22/mi
24M
2:26:45
Rank: #902 (+7)
23M → 24M
6:09 | 6:09/mi
40K· 24.85 mi
2:32:06
Rank: #887 (+15)
24M → 40K
5:21 | 6:15/mi
25.2M
2:34:29
Rank: #883 (+4)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:40:44
Rank: #878 (+5)
25.2M → Finish
6:15 | 6:08/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
Time1:18:16
Pace5:58 /mi
2nd Half
Distance13.11 mi
Time1:22:28
Pace6:17 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:4118:165:5318:16
5:53
-
10K
6.21 mi10:37:1136:465:5518:30
5:57
+0:04
15K
9.32 mi10:55:4755:225:5618:36
5:59
+0:02
20K
12.43 mi11:14:411:14:165:5918:54
6:05
+0:06
Half
13.11 mi11:18:411:18:165:584:00
5:52
-0:13
25K
15.53 mi11:33:221:32:575:5914:41
6:03
+0:11
30K
18.64 mi11:53:051:52:406:0319:43
6:21
+0:18
20M
20.00 mi12:01:452:01:206:048:40
6:23
+0:02
21M
21.00 mi12:08:222:07:576:066:37
6:37
+0:14
35K
21.75 mi12:13:032:12:386:064:41
6:16
-0:21
23M
23.00 mi12:21:012:20:366:077:58
6:22
+0:06
24M
24.00 mi12:27:102:26:456:076:09
6:09
-0:13
40K
24.85 mi12:32:312:32:066:075:21
6:15
+0:06
25.2M
25.20 mi12:34:542:34:296:082:23
6:55
+0:40
Finish
26.22 mi12:41:092:40:446:086:15
6:08
-0:47

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

5:52 /mi

Average Pace

6:08 /mi

Slowest Pace

6:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:44

94% of race

Time at Steady Pace

9:00

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:08 /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 mi10:18:4118:165:5318:16
5:53
#751
10K
6.21 mi10:37:1136:465:5518:30
5:57
#856
15K
9.32 mi10:55:4755:225:5618:36
5:59
#898
20K
12.43 mi11:14:411:14:165:5918:54
6:05
#930
Half
13.11 mi11:18:411:18:165:584:00
5:52
#925
25K
15.53 mi11:33:221:32:575:5914:41
6:03
#909
30K
18.64 mi11:53:051:52:406:0319:43
6:21
#943
20M
20.00 mi12:01:452:01:206:048:40
6:23
#936
21M
21.00 mi12:08:222:07:576:066:37
6:37
#913
35K
21.75 mi12:13:032:12:386:064:41
6:16
#915
23M
23.00 mi12:21:012:20:366:077:58
6:22
#909
24M
24.00 mi12:27:102:26:456:076:09
6:09
#902
40K
24.85 mi12:32:312:32:066:075:21
6:15
#887
25.2M
25.20 mi12:34:542:34:296:082:23
6:55
#883
Finish
26.22 mi12:41:092:40:446:086:15
6:08
#878
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi751699699987(Top 3%)934(Top 6%)934(Top 42%)
10K6.21 mi3.10 mi856-105802-103802-103969(Top 3%)914(Top 6%)914(Top 41%)
15K9.32 mi3.11 mi898-42844-42844-42987(Top 3%)934(Top 6%)934(Top 42%)
20K12.43 mi3.11 mi930-32875-31875-311107(Top 4%)1043(Top 6%)1043(Top 46%)
Half13.11 mi0.68 mi925+5870+5870+5742(Top 3%)696(Top 4%)696(Top 31%)
25K15.53 mi2.42 mi909+16857+13857+13947(Top 3%)892(Top 6%)892(Top 40%)
30K18.64 mi3.11 mi943-34888-31888-311347(Top 5%)1272(Top 8%)1272(Top 57%)
20M20.00 mi1.36 mi936+7880+8880+81161(Top 4%)1093(Top 7%)1093(Top 49%)
21M21.00 mi1.00 mi913+23858+22858+22949(Top 3%)899(Top 6%)899(Top 40%)
35K21.75 mi0.75 mi915-2860-2860-21428(Top 5%)1352(Top 8%)1352(Top 60%)
23M23.00 mi1.25 mi909+6853+7853+71030(Top 4%)973(Top 6%)973(Top 43%)
24M24.00 mi1.00 mi902+7845+8845+8888(Top 3%)834(Top 5%)834(Top 37%)
40K24.85 mi0.85 mi887+15831+14831+14867(Top 3%)813(Top 5%)813(Top 36%)
25.2M25.20 mi0.35 mi883+4827+4827+41214(Top 4%)1116(Top 7%)1116(Top 50%)
Finish26.22 mi1.02 mi878+5821+6821+61288(Top 5%)1201(Top 7%)1201(Top 53%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

987

Males

934

M40-44

934

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

969

Males

914

M40-44

914

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

987

Males

934

M40-44

934

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1107

Males

1043

M40-44

1043

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

742

Males

696

M40-44

696

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

947

Males

892

M40-44

892

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1347

Males

1272

M40-44

1272

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1161

Males

1093

M40-44

1093

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

949

Males

899

M40-44

899

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1428

Males

1352

M40-44

1352

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1030

Males

973

M40-44

973

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

888

Males

834

M40-44

834

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

867

Males

813

M40-44

813

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1214

Males

1116

M40-44

1116

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1288

Males

1201

M40-44

1201

Passing Analysis

Category:
Athletes Passed
293
Passed By
420
Net Change
-127
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#751
5K → 10K17122-105#751#856
10K → 15K1254-42#856#898
15K → 20K2254-32#898#930
20K → Half72+5#930#925
Half → 25K3216+16#925#909
25K → 30K3064-34#909#943
30K → 20M3124+7#943#936
20M → 21M3411+23#936#913
21M → 35K1719-2#913#915
35K → 23M1812+6#915#909
23M → 24M2013+7#909#902
24M → 40K2510+15#902#887
40K → 25.2M95+4#887#883
25.2M → Finish1914+5#883#878
TOTALS293420-127
📊

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