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BOSTON MARATHON 2025

Johannes Klaiber

Bib: 4773•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 21%
Gender (Male)
#0 / 16105
Top 33%
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
19:29
Rank: #2260
Start → 5K
19:29 | 6:16/mi
10K· 6.21 mi
38:58
Rank: #2245 (+15)
5K → 10K
19:29 | 6:16/mi
15K· 9.32 mi
58:41
Rank: #2347 (-102)
10K → 15K
19:43 | 6:21/mi
20K· 12.43 mi
1:19:20
Rank: #2757 (-410)
15K → 20K
20:39 | 6:39/mi
Half· 13.11 mi
1:23:43
Rank: #2781 (-24)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:39:50
Rank: #2914 (-133)
Half → 25K
16:07 | 6:39/mi
30K· 18.64 mi
2:02:44
Rank: #3567 (-653)
25K → 30K
22:54 | 7:22/mi
20M
2:13:37
Rank: #3973 (-406)
30K → 20M
10:53 | 8:01/mi
21M
2:22:49
Rank: #4618 (-645)
20M → 21M
9:12 | 9:12/mi
35K· 21.75 mi
2:28:35
Rank: #4824 (-206)
21M → 35K
5:46 | 7:42/mi
23M
2:38:29
Rank: #5129 (-305)
35K → 23M
9:54 | 7:54/mi
24M
2:46:11
Rank: #5266 (-137)
23M → 24M
7:42 | 7:42/mi
40K· 24.85 mi
2:53:37
Rank: #5484 (-218)
24M → 40K
7:26 | 8:42/mi
25.2M
2:57:06
Rank: #5611 (-127)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:06:02
Rank: #5993 (-382)
25.2M → Finish
8:56 | 8:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:43
Pace6:23 /mi
2nd Half
Distance13.11 mi
Time1:42:19
Pace7:48 /mi
📊Positive Split: 22.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4619:296:1619:29
6:16
-
10K
6.21 mi10:42:1538:586:1619:29
6:16
0:00
15K
9.32 mi11:01:5858:416:1819:43
6:21
+0:05
20K
12.43 mi11:22:371:19:206:2320:39
6:39
+0:18
Half
13.11 mi11:27:001:23:436:234:23
6:25
-0:14
25K
15.53 mi11:43:071:39:506:2616:07
6:39
+0:14
30K
18.64 mi12:06:012:02:446:3522:54
7:22
+0:43
20M
20.00 mi12:16:542:13:376:4110:53
8:01
+0:39
21M
21.00 mi12:26:062:22:496:489:12
9:12
+1:11
35K
21.75 mi12:31:522:28:356:505:46
7:42
-1:30
23M
23.00 mi12:41:462:38:296:539:54
7:54
+0:12
24M
24.00 mi12:49:282:46:116:557:42
7:42
-0:12
40K
24.85 mi12:56:542:53:376:597:26
8:42
+1:00
25.2M
25.20 mi13:00:232:57:067:023:29
10:06
+1:24
Finish
26.22 mi13:09:193:06:027:068:56
8:46
-1:20

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

6:16 /mi

Average Pace

7:06 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:50

54% of race

Time at Steady Pace

57:09

31% of race

Time at Slower Pace

29:03

16% of race

Average Pace: 7:06 /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 mi10:22:4619:296:1619:29
6:16
#2260
10K
6.21 mi10:42:1538:586:1619:29
6:16
#2245
15K
9.32 mi11:01:5858:416:1819:43
6:21
#2347
20K
12.43 mi11:22:371:19:206:2320:39
6:39
#2757
Half
13.11 mi11:27:001:23:436:234:23
6:25
#2781
25K
15.53 mi11:43:071:39:506:2616:07
6:39
#2914
30K
18.64 mi12:06:012:02:446:3522:54
7:22
#3567
20M
20.00 mi12:16:542:13:376:4110:53
8:01
#3973
21M
21.00 mi12:26:062:22:496:489:12
9:12
#4618
35K
21.75 mi12:31:522:28:356:505:46
7:42
#4824
23M
23.00 mi12:41:462:38:296:539:54
7:54
#5129
24M
24.00 mi12:49:282:46:116:557:42
7:42
#5266
40K
24.85 mi12:56:542:53:376:597:26
8:42
#5484
25.2M
25.20 mi13:00:232:57:067:023:29
10:06
#5611
Finish
26.22 mi13:09:193:06:027:068:56
8:46
#5993
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2260215921592615(Top 9%)2495(Top 15%)2495(Top 44%)
10K6.21 mi3.10 mi2245+152143+162143+162233(Top 8%)2134(Top 13%)2134(Top 38%)
15K9.32 mi3.11 mi2347-1022242-992242-992615(Top 9%)2495(Top 15%)2495(Top 44%)
20K12.43 mi3.11 mi2757-4102629-3872629-3873986(Top 14%)3748(Top 23%)3748(Top 66%)
Half13.11 mi0.68 mi2781-242652-232652-233227(Top 11%)3068(Top 19%)3068(Top 54%)
25K15.53 mi2.42 mi2914-1332779-1272779-1273770(Top 13%)3535(Top 22%)3535(Top 63%)
30K18.64 mi3.11 mi3567-6533371-5923371-5926862(Top 24%)5884(Top 37%)5884(Top 104%)
20M20.00 mi1.36 mi3973-4063729-3583729-35810469(Top 37%)7762(Top 48%)7762(Top 138%)
21M21.00 mi1.00 mi4618-6454283-5544283-55414585(Top 51%)9596(Top 60%)9596(Top 170%)
35K21.75 mi0.75 mi4824-2064448-1654448-16510080(Top 35%)7390(Top 46%)7390(Top 131%)
23M23.00 mi1.25 mi5129-3054692-2444692-2449306(Top 33%)6863(Top 43%)6863(Top 122%)
24M24.00 mi1.00 mi5266-1374793-1014793-1019071(Top 32%)6673(Top 41%)6673(Top 118%)
40K24.85 mi0.85 mi5484-2184956-1634956-16314531(Top 51%)9220(Top 57%)9220(Top 163%)
25.2M25.20 mi0.35 mi5611-1275040-845040-8417372(Top 61%)10512(Top 65%)10512(Top 186%)
Finish26.22 mi1.02 mi5993-3825313-2735313-27317826(Top 63%)10774(Top 67%)10774(Top 191%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2615

Males

2495

M18-39

2495

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2233

Males

2134

M18-39

2134

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2615

Males

2495

M18-39

2495

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3986

Males

3748

M18-39

3748

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3227

Males

3068

M18-39

3068

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3770

Males

3535

M18-39

3535

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6862

Males

5884

M18-39

5884

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

10469

Males

7762

M18-39

7762

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

14585

Males

9596

M18-39

9596

21M→35K

21.0 - 21.8 mi

Top 35%
×7stories
+17ft-86ft

Overall

10080

Males

7390

M18-39

7390

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

9306

Males

6863

M18-39

6863

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

9071

Males

6673

M18-39

6673

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14531

Males

9220

M18-39

9220

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17372

Males

10512

M18-39

10512

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17826

Males

10774

M18-39

10774

Passing Analysis

Category:
Athletes Passed
345
Passed By
4078
Net Change
-3733
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2260
5K → 10K121106+15#2260#2245
10K → 15K41143-102#2245#2347
15K → 20K10420-410#2347#2757
20K → Half428-24#2757#2781
Half → 25K40173-133#2781#2914
25K → 30K18671-653#2914#3567
30K → 20M9415-406#3567#3973
20M → 21M6651-645#3973#4618
21M → 35K19225-206#4618#4824
35K → 23M27332-305#4824#5129
23M → 24M20157-137#5129#5266
24M → 40K11229-218#5266#5484
40K → 25.2M12139-127#5484#5611
25.2M → Finish7389-382#5611#5993
TOTALS3454078-3733
📊

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