Boston Marathon logo
BOSTON MARATHON 2025

Christopher Brumby

Bib: 29678•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
30:56
Rank: #25476
Start → 5K
30:56 | 9:57/mi
10K· 6.21 mi
1:01:39
Rank: #25239 (+237)
5K → 10K
30:43 | 9:53/mi
15K· 9.32 mi
1:32:19
Rank: #25065 (+174)
10K → 15K
30:40 | 9:52/mi
20K· 12.43 mi
2:03:41
Rank: #24896 (+169)
15K → 20K
31:22 | 10:06/mi
Half· 13.11 mi
2:10:21
Rank: #24847 (+49)
20K → Half
6:40 | 9:46/mi
25K· 15.53 mi
2:35:57
Rank: #24799 (+48)
Half → 25K
25:36 | 10:34/mi
30K· 18.64 mi
3:10:51
Rank: #24726 (+73)
25K → 30K
34:54 | 11:14/mi
20M
3:26:00
Rank: #24680 (+46)
30K → 20M
15:09 | 11:09/mi
21M
3:38:01
Rank: #24636 (+44)
20M → 21M
12:01 | 12:01/mi
35K· 21.75 mi
3:46:05
Rank: #24616 (+20)
21M → 35K
8:04 | 10:47/mi
23M
4:00:17
Rank: #24588 (+28)
35K → 23M
14:12 | 11:20/mi
24M
4:11:55
Rank: #24607 (-19)
23M → 24M
11:38 | 11:38/mi
40K· 24.85 mi
4:23:00
Rank: #24706 (-99)
24M → 40K
11:05 | 12:58/mi
25.2M
4:27:43
Rank: #24728 (-22)
40K → 25.2M
4:43 | 13:41/mi
Finish· 26.22 mi
4:39:10
Rank: #24789 (-61)
25.2M → Finish
11:27 | 11:14/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
Time2:10:21
Pace9:57 /mi
2nd Half
Distance13.11 mi
Time2:28:49
Pace11:21 /mi
📊Positive Split: 14.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:5230:569:5730:56
9:57
-
10K
6.21 mi12:22:351:01:399:5530:43
9:53
-0:04
15K
9.32 mi12:53:151:32:199:5430:40
9:52
-0:01
20K
12.43 mi13:24:372:03:419:5731:22
10:06
+0:14
Half
13.11 mi13:31:172:10:219:576:40
9:46
-0:20
25K
15.53 mi13:56:532:35:5710:0225:36
10:34
+0:48
30K
18.64 mi14:31:473:10:5110:1434:54
11:14
+0:40
20M
20.00 mi14:46:563:26:0010:1815:09
11:09
-0:05
21M
21.00 mi14:58:573:38:0110:2312:01
12:01
+0:52
35K
21.75 mi15:07:013:46:0510:248:04
10:47
-1:14
23M
23.00 mi15:21:134:00:1710:2714:12
11:20
+0:33
24M
24.00 mi15:32:514:11:5510:3011:38
11:38
+0:18
40K
24.85 mi15:43:564:23:0010:3511:05
12:58
+1:20
25.2M
25.20 mi15:48:394:27:4310:374:43
13:41
+0:43
Finish
26.22 mi16:00:064:39:1010:3911:27
11:14
-2:27

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

9:46 /mi

Average Pace

10:39 /mi

Slowest Pace

13:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:57

56% of race

Time at Steady Pace

1:35:24

34% of race

Time at Slower Pace

27:49

10% of race

Average Pace: 10:39 /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 mi11:51:5230:569:5730:56
9:57
#25476
10K
6.21 mi12:22:351:01:399:5530:43
9:53
#25239
15K
9.32 mi12:53:151:32:199:5430:40
9:52
#25065
20K
12.43 mi13:24:372:03:419:5731:22
10:06
#24896
Half
13.11 mi13:31:172:10:219:576:40
9:46
#24847
25K
15.53 mi13:56:532:35:5710:0225:36
10:34
#24799
30K
18.64 mi14:31:473:10:5110:1434:54
11:14
#24726
20M
20.00 mi14:46:563:26:0010:1815:09
11:09
#24680
21M
21.00 mi14:58:573:38:0110:2312:01
12:01
#24636
35K
21.75 mi15:07:013:46:0510:248:04
10:47
#24616
23M
23.00 mi15:21:134:00:1710:2714:12
11:20
#24588
24M
24.00 mi15:32:514:11:5510:3011:38
11:38
#24607
40K
24.85 mi15:43:564:23:0010:3511:05
12:58
#24706
25.2M
25.20 mi15:48:394:27:4310:374:43
13:41
#24728
Finish
26.22 mi16:00:064:39:1010:3911:27
11:14
#24789
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25476149461494624705(Top 87%)14583(Top 91%)14583(Top 258%)
10K6.21 mi3.10 mi25239+23714818+12814818+12825058(Top 88%)14729(Top 91%)14729(Top 261%)
15K9.32 mi3.11 mi25065+17414742+7614742+7624705(Top 87%)14583(Top 91%)14583(Top 258%)
20K12.43 mi3.11 mi24896+16914654+8814654+8824435(Top 86%)14421(Top 90%)14421(Top 256%)
Half13.11 mi0.68 mi24847+4914633+2114633+2124301(Top 86%)14369(Top 89%)14369(Top 255%)
25K15.53 mi2.42 mi24799+4814588+4514588+4524477(Top 86%)14412(Top 89%)14412(Top 255%)
30K18.64 mi3.11 mi24726+7314532+5614532+5624441(Top 86%)14281(Top 89%)14281(Top 253%)
20M20.00 mi1.36 mi24680+4614498+3414498+3423883(Top 84%)13930(Top 86%)13930(Top 247%)
21M21.00 mi1.00 mi24636+4414469+2914469+2923622(Top 83%)13739(Top 85%)13739(Top 244%)
35K21.75 mi0.75 mi24616+2014450+1914450+1923774(Top 84%)13782(Top 86%)13782(Top 244%)
23M23.00 mi1.25 mi24588+2814416+3414416+3423974(Top 84%)13830(Top 86%)13830(Top 245%)
24M24.00 mi1.00 mi24607-1914412+414412+425128(Top 88%)14368(Top 89%)14368(Top 255%)
40K24.85 mi0.85 mi24706-9914445-3314445-3326261(Top 92%)14919(Top 93%)14919(Top 264%)
25.2M25.20 mi0.35 mi24728-2214447-214447-225905(Top 91%)14704(Top 91%)14704(Top 261%)
Finish26.22 mi1.02 mi24789-6114470-2314470-2325769(Top 91%)14673(Top 91%)14673(Top 260%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21stories
+97ft-345ft

Overall

24705

Males

14583

M18-39

14583

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

25058

Males

14729

M18-39

14729

10K→15K

6.2 - 9.3 mi

Top 87%
×3stories
+67ft-78ft

Overall

24705

Males

14583

M18-39

14583

15K→20K

9.3 - 12.4 mi

Top 86%
×5stories
+106ft-86ft

Overall

24435

Males

14421

M18-39

14421

20K→Half

12.4 - 13.1 mi

Top 86%
×2stories
+19ft-37ft

Overall

24301

Males

14369

M18-39

14369

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

24477

Males

14412

M18-39

14412

25K→30K

15.5 - 18.6 mi

Top 86%
×9stories
+181ft-148ft

Overall

24441

Males

14281

M18-39

14281

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

23883

Males

13930

M18-39

13930

20M→21M

20.0 - 21.0 mi

Top 83%
×8stories
+106ft-24ft

Overall

23622

Males

13739

M18-39

13739

21M→35K

21.0 - 21.8 mi

Top 84%
×7stories
+17ft-86ft

Overall

23774

Males

13782

M18-39

13782

35K→23M

21.8 - 23.0 mi

Top 84%
×5stories
+23ft-63ft

Overall

23974

Males

13830

M18-39

13830

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

25128

Males

14368

M18-39

14368

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26261

Males

14919

M18-39

14919

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25905

Males

14704

M18-39

14704

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2stories
+22ft-21ft

Overall

25769

Males

14673

M18-39

14673

Passing Analysis

Category:
Athletes Passed
1465
Passed By
778
Net Change
+687
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25476
5K → 10K31578+237#25476#25239
10K → 15K23359+174#25239#25065
15K → 20K22657+169#25065#24896
20K → Half5910+49#24896#24847
Half → 25K12678+48#24847#24799
25K → 30K16693+73#24799#24726
30K → 20M8236+46#24726#24680
20M → 21M7733+44#24680#24636
21M → 35K3919+20#24636#24616
35K → 23M6941+28#24616#24588
23M → 24M3655-19#24588#24607
24M → 40K9108-99#24607#24706
40K → 25.2M931-22#24706#24728
25.2M → Finish1980-61#24728#24789
TOTALS1465778+687
📊

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