Boston Marathon logo
BOSTON MARATHON 2025

James Renihan

Bib: 3552•M

ON

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 11%
Gender (Male)
#0 / 16105
Top 18%
Masters (Masters Men)
#0 / 10463
Top 6%
Division (M40-44)
#0 / 2247
Top 18%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:16
Rank: #3992
Start → 5K
20:16 | 6:31/mi
10K· 6.21 mi
40:20
Rank: #3703 (+289)
5K → 10K
20:04 | 6:28/mi
15K· 9.32 mi
1:00:25
Rank: #3561 (+142)
10K → 15K
20:05 | 6:28/mi
20K· 12.43 mi
1:20:41
Rank: #3443 (+118)
15K → 20K
20:16 | 6:31/mi
Half· 13.11 mi
1:25:05
Rank: #3430 (+13)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:40:53
Rank: #3334 (+96)
Half → 25K
15:48 | 6:31/mi
30K· 18.64 mi
2:01:50
Rank: #3244 (+90)
25K → 30K
20:57 | 6:45/mi
20M
2:11:05
Rank: #3180 (+64)
30K → 20M
9:15 | 6:48/mi
21M
2:18:18
Rank: #3143 (+37)
20M → 21M
7:13 | 7:13/mi
35K· 21.75 mi
2:23:16
Rank: #3118 (+25)
21M → 35K
4:58 | 6:38/mi
23M
2:32:01
Rank: #3101 (+17)
35K → 23M
8:45 | 6:59/mi
24M
2:38:51
Rank: #3091 (+10)
23M → 24M
6:50 | 6:50/mi
40K· 24.85 mi
2:44:47
Rank: #3067 (+24)
24M → 40K
5:56 | 6:56/mi
25.2M
2:47:26
Rank: #3060 (+7)
40K → 25.2M
2:39 | 7:41/mi
Finish· 26.22 mi
2:54:24
Rank: #3095 (-35)
25.2M → Finish
6:58 | 6:50/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
Time1:25:05
Pace6:29 /mi
2nd Half
Distance13.11 mi
Time1:29:19
Pace6:49 /mi
📊Positive Split: 5.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3020:166:3120:16
6:31
-
10K
6.21 mi10:42:3440:206:2920:04
6:28
-0:03
15K
9.32 mi11:02:391:00:256:2920:05
6:28
0:00
20K
12.43 mi11:22:551:20:416:3020:16
6:31
+0:03
Half
13.11 mi11:27:191:25:056:294:24
6:27
-0:04
25K
15.53 mi11:43:071:40:536:3015:48
6:31
+0:04
30K
18.64 mi12:04:042:01:506:3220:57
6:45
+0:14
20M
20.00 mi12:13:192:11:056:339:15
6:48
+0:03
21M
21.00 mi12:20:322:18:186:357:13
7:13
+0:25
35K
21.75 mi12:25:302:23:166:354:58
6:38
-0:35
23M
23.00 mi12:34:152:32:016:378:45
6:59
+0:21
24M
24.00 mi12:41:052:38:516:376:50
6:50
-0:09
40K
24.85 mi12:47:012:44:476:385:56
6:56
+0:06
25.2M
25.20 mi12:49:402:47:266:392:39
7:41
+0:45
Finish
26.22 mi12:56:382:54:246:396:58
6:50
-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

6:27 /mi

Average Pace

6:39 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:32

94% of race

Time at Steady Pace

7:13

4% of race

Time at Slower Pace

2:39

2% of race

Average Pace: 6:39 /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 mi10:22:3020:166:3120:16
6:31
#3992
10K
6.21 mi10:42:3440:206:2920:04
6:28
#3703
15K
9.32 mi11:02:391:00:256:2920:05
6:28
#3561
20K
12.43 mi11:22:551:20:416:3020:16
6:31
#3443
Half
13.11 mi11:27:191:25:056:294:24
6:27
#3430
25K
15.53 mi11:43:071:40:536:3015:48
6:31
#3334
30K
18.64 mi12:04:042:01:506:3220:57
6:45
#3244
20M
20.00 mi12:13:192:11:056:339:15
6:48
#3180
21M
21.00 mi12:20:322:18:186:357:13
7:13
#3143
35K
21.75 mi12:25:302:23:166:354:58
6:38
#3118
23M
23.00 mi12:34:152:32:016:378:45
6:59
#3101
24M
24.00 mi12:41:052:38:516:376:50
6:50
#3091
40K
24.85 mi12:47:012:44:476:385:56
6:56
#3067
25.2M
25.20 mi12:49:402:47:266:392:39
7:41
#3060
Finish
26.22 mi12:56:382:54:246:396:58
6:50
#3095
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3992376737673320(Top 12%)3150(Top 20%)3150(Top 140%)
10K6.21 mi3.10 mi3703+2893509+2583509+2583418(Top 12%)3242(Top 20%)3242(Top 144%)
15K9.32 mi3.11 mi3561+1423375+1343375+1343320(Top 12%)3150(Top 20%)3150(Top 140%)
20K12.43 mi3.11 mi3443+1183263+1123263+1123249(Top 11%)3079(Top 19%)3079(Top 137%)
Half13.11 mi0.68 mi3430+133252+113252+113345(Top 12%)3171(Top 20%)3171(Top 141%)
25K15.53 mi2.42 mi3334+963169+833169+832969(Top 10%)2823(Top 18%)2823(Top 126%)
30K18.64 mi3.11 mi3244+903076+933076+933100(Top 11%)2909(Top 18%)2909(Top 129%)
20M20.00 mi1.36 mi3180+643013+633013+632950(Top 10%)2749(Top 17%)2749(Top 122%)
21M21.00 mi1.00 mi3143+372976+372976+373192(Top 11%)2940(Top 18%)2940(Top 131%)
35K21.75 mi0.75 mi3118+252952+242952+243127(Top 11%)2869(Top 18%)2869(Top 128%)
23M23.00 mi1.25 mi3101+172931+212931+213663(Top 13%)3307(Top 21%)3307(Top 147%)
24M24.00 mi1.00 mi3091+102918+132918+133672(Top 13%)3268(Top 20%)3268(Top 145%)
40K24.85 mi0.85 mi3067+242894+242894+243529(Top 12%)3125(Top 19%)3125(Top 139%)
25.2M25.20 mi0.35 mi3060+72886+82886+84184(Top 15%)3540(Top 22%)3540(Top 158%)
Finish26.22 mi1.02 mi3095-352916-302916-304681(Top 16%)3905(Top 24%)3905(Top 174%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3320

Males

3150

M40-44

3150

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3418

Males

3242

M40-44

3242

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3320

Males

3150

M40-44

3150

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3249

Males

3079

M40-44

3079

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3345

Males

3171

M40-44

3171

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2969

Males

2823

M40-44

2823

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3100

Males

2909

M40-44

2909

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2950

Males

2749

M40-44

2749

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3192

Males

2940

M40-44

2940

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3127

Males

2869

M40-44

2869

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3663

Males

3307

M40-44

3307

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3672

Males

3268

M40-44

3268

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3529

Males

3125

M40-44

3125

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4184

Males

3540

M40-44

3540

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4681

Males

3905

M40-44

3905

Passing Analysis

Category:
Athletes Passed
1384
Passed By
487
Net Change
+897
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3992
5K → 10K32738+289#3992#3703
10K → 15K18240+142#3703#3561
15K → 20K16446+118#3561#3443
20K → Half2310+13#3443#3430
Half → 25K12428+96#3430#3334
25K → 30K15161+90#3334#3244
30K → 20M7814+64#3244#3180
20M → 21M7134+37#3180#3143
21M → 35K4116+25#3143#3118
35K → 23M7053+17#3118#3101
23M → 24M5444+10#3101#3091
24M → 40K4925+24#3091#3067
40K → 25.2M2215+7#3067#3060
25.2M → Finish2863-35#3060#3095
TOTALS1384487+897
📊

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