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BOSTON MARATHON 2025

Christoffer Johnston

Bib: 8938•M

NJ

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 29%
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
20:26
Rank: #4389
Start → 5K
20:26 | 6:35/mi
10K· 6.21 mi
41:00
Rank: #4482 (-93)
5K → 10K
20:34 | 6:37/mi
15K· 9.32 mi
1:01:41
Rank: #4526 (-44)
10K → 15K
20:41 | 6:39/mi
20K· 12.43 mi
1:22:22
Rank: #4387 (+139)
15K → 20K
20:41 | 6:39/mi
Half· 13.11 mi
1:26:54
Rank: #4396 (-9)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:43:25
Rank: #4434 (-38)
Half → 25K
16:31 | 6:49/mi
30K· 18.64 mi
2:05:40
Rank: #4665 (-231)
25K → 30K
22:15 | 7:10/mi
20M
2:15:37
Rank: #4786 (-121)
30K → 20M
9:57 | 7:19/mi
21M
2:23:32
Rank: #4893 (-107)
20M → 21M
7:55 | 7:55/mi
35K· 21.75 mi
2:28:54
Rank: #4941 (-48)
21M → 35K
5:22 | 7:10/mi
23M
2:38:09
Rank: #5014 (-73)
35K → 23M
9:15 | 7:23/mi
24M
2:45:27
Rank: #5077 (-63)
23M → 24M
7:18 | 7:18/mi
40K· 24.85 mi
2:51:50
Rank: #5091 (-14)
24M → 40K
6:23 | 7:28/mi
25.2M
2:54:38
Rank: #5093 (-2)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:01:50
Rank: #5081 (+12)
25.2M → Finish
7:12 | 7:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:54
Pace6:38 /mi
2nd Half
Distance13.11 mi
Time1:34:56
Pace7:15 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:5120:266:3520:26
6:35
-
10K
6.21 mi11:06:2541:006:3620:34
6:37
+0:02
15K
9.32 mi11:27:061:01:416:3720:41
6:39
+0:02
20K
12.43 mi11:47:471:22:226:3820:41
6:39
0:00
Half
13.11 mi11:52:191:26:546:384:32
6:39
0:00
25K
15.53 mi12:08:501:43:256:3916:31
6:49
+0:10
30K
18.64 mi12:31:052:05:406:4422:15
7:10
+0:21
20M
20.00 mi12:41:022:15:376:479:57
7:19
+0:09
21M
21.00 mi12:48:572:23:326:507:55
7:55
+0:36
35K
21.75 mi12:54:192:28:546:515:22
7:10
-0:45
23M
23.00 mi13:03:342:38:096:539:15
7:23
+0:13
24M
24.00 mi13:10:522:45:276:547:18
7:18
-0:05
40K
24.85 mi13:17:152:51:506:556:23
7:28
+0:10
25.2M
25.20 mi13:20:032:54:386:562:48
8:07
+0:39
Finish
26.22 mi13:27:153:01:506:567:12
7:04
-1:03

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

6:35 /mi

Average Pace

6:56 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:25

57% of race

Time at Steady Pace

1:01:19

34% of race

Time at Slower Pace

17:06

9% of race

Average Pace: 6:56 /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 mi10:45:5120:266:3520:26
6:35
#4389
10K
6.21 mi11:06:2541:006:3620:34
6:37
#4482
15K
9.32 mi11:27:061:01:416:3720:41
6:39
#4526
20K
12.43 mi11:47:471:22:226:3820:41
6:39
#4387
Half
13.11 mi11:52:191:26:546:384:32
6:39
#4396
25K
15.53 mi12:08:501:43:256:3916:31
6:49
#4434
30K
18.64 mi12:31:052:05:406:4422:15
7:10
#4665
20M
20.00 mi12:41:022:15:376:479:57
7:19
#4786
21M
21.00 mi12:48:572:23:326:507:55
7:55
#4893
35K
21.75 mi12:54:192:28:546:515:22
7:10
#4941
23M
23.00 mi13:03:342:38:096:539:15
7:23
#5014
24M
24.00 mi13:10:522:45:276:547:18
7:18
#5077
40K
24.85 mi13:17:152:51:506:556:23
7:28
#5091
25.2M
25.20 mi13:20:032:54:386:562:48
8:07
#5093
Finish
26.22 mi13:27:153:01:506:567:12
7:04
#5081
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4389412641264705(Top 17%)4398(Top 27%)4398(Top 78%)
10K6.21 mi3.10 mi4482-934212-864212-864619(Top 16%)4325(Top 27%)4325(Top 77%)
15K9.32 mi3.11 mi4526-444252-404252-404705(Top 17%)4398(Top 27%)4398(Top 78%)
20K12.43 mi3.11 mi4387+1394119+1334119+1334072(Top 14%)3822(Top 24%)3822(Top 68%)
Half13.11 mi0.68 mi4396-94126-74126-74770(Top 17%)4430(Top 28%)4430(Top 79%)
25K15.53 mi2.42 mi4434-384152-264152-264959(Top 17%)4553(Top 28%)4553(Top 81%)
30K18.64 mi3.11 mi4665-2314335-1834335-1835669(Top 20%)5066(Top 31%)5066(Top 90%)
20M20.00 mi1.36 mi4786-1214432-974432-975891(Top 21%)5114(Top 32%)5114(Top 91%)
21M21.00 mi1.00 mi4893-1074512-804512-806839(Top 24%)5573(Top 35%)5573(Top 99%)
35K21.75 mi0.75 mi4941-484541-294541-296382(Top 22%)5296(Top 33%)5296(Top 94%)
23M23.00 mi1.25 mi5014-734594-534594-535949(Top 21%)4927(Top 31%)4927(Top 87%)
24M24.00 mi1.00 mi5077-634635-414635-416383(Top 22%)5138(Top 32%)5138(Top 91%)
40K24.85 mi0.85 mi5091-144638-34638-36562(Top 23%)5169(Top 32%)5169(Top 92%)
25.2M25.20 mi0.35 mi5093-24636+24636+26492(Top 23%)5021(Top 31%)5021(Top 89%)
Finish26.22 mi1.02 mi5081+124614+224614+226123(Top 22%)4799(Top 30%)4799(Top 85%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4705

Males

4398

M18-39

4398

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4619

Males

4325

M18-39

4325

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4705

Males

4398

M18-39

4398

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

4072

Males

3822

M18-39

3822

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4770

Males

4430

M18-39

4430

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4959

Males

4553

M18-39

4553

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5669

Males

5066

M18-39

5066

30K→20M

18.6 - 20.0 mi

Top 21%
×5stories
+64ft-50ft

Overall

5891

Males

5114

M18-39

5114

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6839

Males

5573

M18-39

5573

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

6382

Males

5296

M18-39

5296

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

5949

Males

4927

M18-39

4927

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

6383

Males

5138

M18-39

5138

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6562

Males

5169

M18-39

5169

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6492

Males

5021

M18-39

5021

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

6123

Males

4799

M18-39

4799

Passing Analysis

Category:
Athletes Passed
891
Passed By
1583
Net Change
-692
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4389
5K → 10K108201-93#4389#4482
10K → 15K74118-44#4482#4526
15K → 20K17940+139#4526#4387
20K → Half1726-9#4387#4396
Half → 25K88126-38#4396#4434
25K → 30K87318-231#4434#4665
30K → 20M37158-121#4665#4786
20M → 21M38145-107#4786#4893
21M → 35K4492-48#4893#4941
35K → 23M65138-73#4941#5014
23M → 24M40103-63#5014#5077
24M → 40K4458-14#5077#5091
40K → 25.2M2527-2#5091#5093
25.2M → Finish4533+12#5093#5081
TOTALS8911583-692
📊

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