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BOSTON MARATHON 2025

Jonathan Bower

Bib: 7336•M

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 43%
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
23:31
Rank: #12834
Start → 5K
23:31 | 7:34/mi
10K· 6.21 mi
46:06
Rank: #11402 (+1432)
5K → 10K
22:35 | 7:16/mi
15K· 9.32 mi
1:08:56
Rank: #11017 (+385)
10K → 15K
22:50 | 7:21/mi
20K· 12.43 mi
1:32:40
Rank: #11281 (-264)
15K → 20K
23:44 | 7:38/mi
Half· 13.11 mi
1:37:40
Rank: #11222 (+59)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
1:56:01
Rank: #11059 (+163)
Half → 25K
18:21 | 7:34/mi
30K· 18.64 mi
2:20:55
Rank: #11108 (-49)
25K → 30K
24:54 | 8:01/mi
20M
2:32:28
Rank: #11276 (-168)
30K → 20M
11:33 | 8:30/mi
21M
2:41:33
Rank: #11396 (-120)
20M → 21M
9:05 | 9:05/mi
35K· 21.75 mi
2:47:47
Rank: #11536 (-140)
21M → 35K
6:14 | 8:20/mi
23M
2:58:54
Rank: #11793 (-257)
35K → 23M
11:07 | 8:53/mi
24M
3:07:32
Rank: #11954 (-161)
23M → 24M
8:38 | 8:38/mi
40K· 24.85 mi
3:15:12
Rank: #12126 (-172)
24M → 40K
7:40 | 8:58/mi
25.2M
3:18:22
Rank: #12134 (-8)
40K → 25.2M
3:10 | 9:11/mi
Finish· 26.22 mi
3:26:41
Rank: #12182 (-48)
25.2M → Finish
8:19 | 8:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:40
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:49:01
Pace8:19 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:0423:317:3423:31
7:34
-
10K
6.21 mi10:52:3946:067:2522:35
7:16
-0:18
15K
9.32 mi11:15:291:08:567:2422:50
7:21
+0:05
20K
12.43 mi11:39:131:32:407:2723:44
7:38
+0:17
Half
13.11 mi11:44:131:37:407:275:00
7:20
-0:18
25K
15.53 mi12:02:341:56:017:2818:21
7:34
+0:14
30K
18.64 mi12:27:282:20:557:3424:54
8:01
+0:27
20M
20.00 mi12:39:012:32:287:3711:33
8:30
+0:29
21M
21.00 mi12:48:062:41:337:429:05
9:05
+0:35
35K
21.75 mi12:54:202:47:477:436:14
8:20
-0:45
23M
23.00 mi13:05:272:58:547:4711:07
8:53
+0:33
24M
24.00 mi13:14:053:07:327:498:38
8:38
-0:15
40K
24.85 mi13:21:453:15:127:517:40
8:58
+0:20
25.2M
25.20 mi13:24:553:18:227:523:10
9:11
+0:13
Finish
26.22 mi13:33:143:26:417:538:19
8:10
-1:01

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

7:16 /mi

Average Pace

7:53 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:01

56% of race

Time at Steady Pace

39:27

19% of race

Time at Slower Pace

51:13

25% of race

Average Pace: 7:53 /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 mi10:30:0423:317:3423:31
7:34
#12834
10K
6.21 mi10:52:3946:067:2522:35
7:16
#11402
15K
9.32 mi11:15:291:08:567:2422:50
7:21
#11017
20K
12.43 mi11:39:131:32:407:2723:44
7:38
#11281
Half
13.11 mi11:44:131:37:407:275:00
7:20
#11222
25K
15.53 mi12:02:341:56:017:2818:21
7:34
#11059
30K
18.64 mi12:27:282:20:557:3424:54
8:01
#11108
20M
20.00 mi12:39:012:32:287:3711:33
8:30
#11276
21M
21.00 mi12:48:062:41:337:429:05
9:05
#11396
35K
21.75 mi12:54:202:47:477:436:14
8:20
#11536
23M
23.00 mi13:05:272:58:547:4711:07
8:53
#11793
24M
24.00 mi13:14:053:07:327:498:38
8:38
#11954
40K
24.85 mi13:21:453:15:127:517:40
8:58
#12126
25.2M
25.20 mi13:24:553:18:227:523:10
9:11
#12134
Finish
26.22 mi13:33:143:26:417:538:19
8:10
#12182
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi128349570957010403(Top 37%)8300(Top 52%)8300(Top 147%)
10K6.21 mi3.10 mi11402+14328874+6968874+69610086(Top 36%)8196(Top 51%)8196(Top 145%)
15K9.32 mi3.11 mi11017+3858661+2138661+21310403(Top 37%)8300(Top 52%)8300(Top 147%)
20K12.43 mi3.11 mi11281-2648753-928753-9211859(Top 42%)8905(Top 55%)8905(Top 158%)
Half13.11 mi0.68 mi11222+598728+258728+2510255(Top 36%)8171(Top 51%)8171(Top 145%)
25K15.53 mi2.42 mi11059+1638606+1228606+12210501(Top 37%)8153(Top 51%)8153(Top 145%)
30K18.64 mi3.11 mi11108-498558+488558+4811476(Top 40%)8426(Top 52%)8426(Top 149%)
20M20.00 mi1.36 mi11276-1688595-378595-3713752(Top 48%)9325(Top 58%)9325(Top 165%)
21M21.00 mi1.00 mi11396-1208605-108605-1013967(Top 49%)9308(Top 58%)9308(Top 165%)
35K21.75 mi0.75 mi11536-1408651-468651-4614422(Top 51%)9454(Top 59%)9454(Top 168%)
23M23.00 mi1.25 mi11793-2578740-898740-8915537(Top 55%)9865(Top 61%)9865(Top 175%)
24M24.00 mi1.00 mi11954-1618781-418781-4115325(Top 54%)9720(Top 60%)9720(Top 172%)
40K24.85 mi0.85 mi12126-1728829-488829-4816071(Top 57%)9944(Top 62%)9944(Top 176%)
25.2M25.20 mi0.35 mi12134-88815+148815+1412765(Top 45%)8350(Top 52%)8350(Top 148%)
Finish26.22 mi1.02 mi12182-488808+78808+713979(Top 49%)8999(Top 56%)8999(Top 160%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

10403

Males

8300

M18-39

8300

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

10086

Males

8196

M18-39

8196

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

10403

Males

8300

M18-39

8300

15K→20K

9.3 - 12.4 mi

Top 42%
×5stories
+106ft-86ft

Overall

11859

Males

8905

M18-39

8905

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

10255

Males

8171

M18-39

8171

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

10501

Males

8153

M18-39

8153

25K→30K

15.5 - 18.6 mi

Top 40%
×9stories
+181ft-148ft

Overall

11476

Males

8426

M18-39

8426

30K→20M

18.6 - 20.0 mi

Top 48%
×5stories
+64ft-50ft

Overall

13752

Males

9325

M18-39

9325

20M→21M

20.0 - 21.0 mi

Top 49%
×8stories
+106ft-24ft

Overall

13967

Males

9308

M18-39

9308

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

14422

Males

9454

M18-39

9454

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

15537

Males

9865

M18-39

9865

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

15325

Males

9720

M18-39

9720

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16071

Males

9944

M18-39

9944

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12765

Males

8350

M18-39

8350

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

13979

Males

8999

M18-39

8999

Passing Analysis

Category:
Athletes Passed
2875
Passed By
2223
Net Change
+652
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12834
5K → 10K144614+1432#12834#11402
10K → 15K42944+385#11402#11017
15K → 20K109373-264#11017#11281
20K → Half678+59#11281#11222
Half → 25K23875+163#11222#11059
25K → 30K208257-49#11059#11108
30K → 20M72240-168#11108#11276
20M → 21M60180-120#11276#11396
21M → 35K32172-140#11396#11536
35K → 23M55312-257#11536#11793
23M → 24M40201-161#11793#11954
24M → 40K31203-172#11954#12126
40K → 25.2M3846-8#12126#12134
25.2M → Finish5098-48#12134#12182
TOTALS28752223+652
📊

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