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BOSTON MARATHON 2025

Christopher Johnson

Bib: 31441•M

MA

0:00
0:00
/ mi
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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
29:47
Rank: #24521
Start → 5K
29:47 | 9:35/mi
10K· 6.21 mi
1:01:36
Rank: #25220 (-699)
5K → 10K
31:49 | 10:14/mi
15K· 9.32 mi
1:33:12
Rank: #25286 (-66)
10K → 15K
31:36 | 10:10/mi
20K· 12.43 mi
2:06:30
Rank: #25394 (-108)
15K → 20K
33:18 | 10:43/mi
Half· 13.11 mi
2:13:37
Rank: #25401 (-7)
20K → Half
7:07 | 10:26/mi
25K· 15.53 mi
2:41:26
Rank: #25495 (-94)
Half → 25K
27:49 | 11:28/mi
30K· 18.64 mi
3:19:23
Rank: #25587 (-92)
25K → 30K
37:57 | 12:13/mi
20M
3:35:22
Rank: #25529 (+58)
30K → 20M
15:59 | 11:46/mi
21M
3:48:27
Rank: #25513 (+16)
20M → 21M
13:05 | 13:05/mi
35K· 21.75 mi
3:56:46
Rank: #25482 (+31)
21M → 35K
8:19 | 11:07/mi
23M
4:11:21
Rank: #25433 (+49)
35K → 23M
14:35 | 11:39/mi
24M
4:22:52
Rank: #25426 (+7)
23M → 24M
11:31 | 11:31/mi
40K· 24.85 mi
4:33:33
Rank: #25443 (-17)
24M → 40K
10:41 | 12:30/mi
25.2M
4:38:13
Rank: #25456 (-13)
40K → 25.2M
4:40 | 13:32/mi
Finish· 26.22 mi
4:50:30
Rank: #25552 (-96)
25.2M → Finish
12:17 | 12:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:13:37
Pace10:12 /mi
2nd Half
Distance13.11 mi
Time2:36:53
Pace11:58 /mi
📊Positive Split: 17.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:3129:479:3529:47
9:35
-
10K
6.21 mi12:25:201:01:369:5531:49
10:14
+0:39
15K
9.32 mi12:56:561:33:1210:0031:36
10:10
-0:04
20K
12.43 mi13:30:142:06:3010:1133:18
10:43
+0:33
Half
13.11 mi13:37:212:13:3710:127:07
10:26
-0:17
25K
15.53 mi14:05:102:41:2610:2427:49
11:28
+1:02
30K
18.64 mi14:43:073:19:2310:4237:57
12:13
+0:45
20M
20.00 mi14:59:063:35:2210:4615:59
11:46
-0:27
21M
21.00 mi15:12:113:48:2710:5313:05
13:05
+1:19
35K
21.75 mi15:20:303:56:4610:538:19
11:07
-1:58
23M
23.00 mi15:35:054:11:2110:5614:35
11:39
+0:32
24M
24.00 mi15:46:364:22:5210:5711:31
11:31
-0:08
40K
24.85 mi15:57:174:33:3311:0010:41
12:30
+0:59
25.2M
25.20 mi16:01:574:38:1311:024:40
13:32
+1:02
Finish
26.22 mi16:14:144:50:3011:0512:17
12:03
-1:29

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

9:35 /mi

Average Pace

11:05 /mi

Slowest Pace

13:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:37

46% of race

Time at Steady Pace

1:30:30

31% of race

Time at Slower Pace

1:06:23

23% of race

Average Pace: 11:05 /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 mi11:53:3129:479:3529:47
9:35
#24521
10K
6.21 mi12:25:201:01:369:5531:49
10:14
#25220
15K
9.32 mi12:56:561:33:1210:0031:36
10:10
#25286
20K
12.43 mi13:30:142:06:3010:1133:18
10:43
#25394
Half
13.11 mi13:37:212:13:3710:127:07
10:26
#25401
25K
15.53 mi14:05:102:41:2610:2427:49
11:28
#25495
30K
18.64 mi14:43:073:19:2310:4237:57
12:13
#25587
20M
20.00 mi14:59:063:35:2210:4615:59
11:46
#25529
21M
21.00 mi15:12:113:48:2710:5313:05
13:05
#25513
35K
21.75 mi15:20:303:56:4610:538:19
11:07
#25482
23M
23.00 mi15:35:054:11:2110:5614:35
11:39
#25433
24M
24.00 mi15:46:364:22:5210:5711:31
11:31
#25426
40K
24.85 mi15:57:174:33:3311:0010:41
12:30
#25443
25.2M
25.20 mi16:01:574:38:1311:024:40
13:32
#25456
Finish
26.22 mi16:14:144:50:3011:0512:17
12:03
#25552
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24521144911449125357(Top 89%)14862(Top 92%)14862(Top 263%)
10K6.21 mi3.10 mi25220-69914806-31514806-31525814(Top 91%)15056(Top 93%)15056(Top 267%)
15K9.32 mi3.11 mi25286-6614839-3314839-3325357(Top 89%)14862(Top 92%)14862(Top 263%)
20K12.43 mi3.11 mi25394-10814875-3614875-3625579(Top 90%)14935(Top 93%)14935(Top 265%)
Half13.11 mi0.68 mi25401-714882-714882-725687(Top 90%)14966(Top 93%)14966(Top 265%)
25K15.53 mi2.42 mi25495-9414912-3014912-3025822(Top 91%)14991(Top 93%)14991(Top 266%)
30K18.64 mi3.11 mi25587-9214910+214910+225837(Top 91%)14914(Top 93%)14914(Top 264%)
20M20.00 mi1.36 mi25529+5814876+3414876+3424935(Top 88%)14432(Top 90%)14432(Top 256%)
21M21.00 mi1.00 mi25513+1614864+1214864+1225159(Top 89%)14453(Top 90%)14453(Top 256%)
35K21.75 mi0.75 mi25482+3114836+2814836+2824468(Top 86%)14096(Top 88%)14096(Top 250%)
23M23.00 mi1.25 mi25433+4914795+4114795+4124508(Top 86%)14097(Top 88%)14097(Top 250%)
24M24.00 mi1.00 mi25426+714787+814787+824930(Top 88%)14272(Top 89%)14272(Top 253%)
40K24.85 mi0.85 mi25443-1714785+214785+225658(Top 90%)14618(Top 91%)14618(Top 259%)
25.2M25.20 mi0.35 mi25456-1314792-714792-725720(Top 91%)14602(Top 91%)14602(Top 259%)
Finish26.22 mi1.02 mi25552-9614818-2614818-2626856(Top 95%)15223(Top 95%)15223(Top 270%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

25357

Males

14862

M18-39

14862

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

25814

Males

15056

M18-39

15056

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

25357

Males

14862

M18-39

14862

15K→20K

9.3 - 12.4 mi

Top 90%
×5stories
+106ft-86ft

Overall

25579

Males

14935

M18-39

14935

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

25687

Males

14966

M18-39

14966

Half→25K

13.1 - 15.5 mi

Top 91%
×4stories
+66ft-88ft

Overall

25822

Males

14991

M18-39

14991

25K→30K

15.5 - 18.6 mi

Top 91%
×9stories
+181ft-148ft

Overall

25837

Males

14914

M18-39

14914

30K→20M

18.6 - 20.0 mi

Top 88%
×5stories
+64ft-50ft

Overall

24935

Males

14432

M18-39

14432

20M→21M

20.0 - 21.0 mi

Top 89%
×8stories
+106ft-24ft

Overall

25159

Males

14453

M18-39

14453

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

24468

Males

14096

M18-39

14096

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

24508

Males

14097

M18-39

14097

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

24930

Males

14272

M18-39

14272

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

25658

Males

14618

M18-39

14618

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25720

Males

14602

M18-39

14602

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2stories
+22ft-21ft

Overall

26856

Males

15223

M18-39

15223

Passing Analysis

Category:
Athletes Passed
759
Passed By
1790
Net Change
-1031
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24521
5K → 10K41740-699#24521#25220
10K → 15K120186-66#25220#25286
15K → 20K87195-108#25286#25394
20K → Half2027-7#25394#25401
Half → 25K68162-94#25401#25495
25K → 30K93185-92#25495#25587
30K → 20M8426+58#25587#25529
20M → 21M4529+16#25529#25513
21M → 35K4211+31#25513#25482
35K → 23M7122+49#25482#25433
23M → 24M3932+7#25433#25426
24M → 40K3047-17#25426#25443
40K → 25.2M821-13#25443#25456
25.2M → Finish11107-96#25456#25552
TOTALS7591790-1031
📊

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