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BOSTON MARATHON 2025

Janik Blatter

Bib: 30536•M

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:22/mi
26:00
↑ 97↓ 3451.5%
10K· 6.21 mi
8:16/mi
51:41
↑ 79↓ 1380.4%
15K· 9.32 mi
8:15/mi
1:17:18
↑ 67↓ 78
20K· 12.43 mi
8:18/mi
1:43:05
↑ 106↓ 860.1%
Half· 13.11 mi
8:10/mi
1:48:39
↑ 19↓ 370.5%
25K· 15.53 mi
8:23/mi
2:08:59
↑ 66↓ 880.2%
30K· 18.64 mi
8:48/mi
2:36:20
↑ 181↓ 1480.2%
20M
9:01/mi
2:48:35
↑ 64↓ 500.2%
21M
9:45/mi
2:58:20
↑ 106↓ 241.6%
35K· 21.75 mi
8:24/mi
3:04:37
↑ 17↓ 861.7%
23M
8:39/mi
3:15:27
↑ 23↓ 630.6%
24M
8:31/mi
3:23:58
↓ 821.3%
40K· 24.85 mi
8:36/mi
3:31:19
↓ 200.3%
25.2M
10:06/mi
3:34:48
↑ 13↓ 160.2%
Finish· 26.22 mi
8:39/mi
3:43:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:39
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time1:54:58
Pace8:46 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:2926:008:2226:00
8:22
-
10K
6.21 mi12:12:1051:418:1925:41
8:16
-0:06
15K
9.32 mi12:37:471:17:188:1825:37
8:15
-0:01
20K
12.43 mi13:03:341:43:058:1825:47
8:18
+0:03
Half
13.11 mi13:09:081:48:398:175:34
8:10
-0:08
25K
15.53 mi13:29:282:08:598:1820:20
8:23
+0:13
30K
18.64 mi13:56:492:36:208:2327:21
8:48
+0:25
20M
20.00 mi14:09:042:48:358:2612:15
9:01
+0:13
21M
21.00 mi14:18:492:58:208:309:45
9:45
+0:44
35K
21.75 mi14:25:063:04:378:296:17
8:24
-1:21
23M
23.00 mi14:35:563:15:278:3010:50
8:39
+0:15
24M
24.00 mi14:44:273:23:588:308:31
8:31
-0:08
40K
24.85 mi14:51:483:31:198:307:21
8:36
+0:05
25.2M
25.20 mi14:55:173:34:488:313:29
10:06
+1:30
Finish
26.22 mi15:04:063:43:378:328:49
8:39
-1:27

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

8:10 /mi

Average Pace

8:32 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:34

2% of race

Time at Steady Pace

2:45:13

74% of race

Time at Slower Pace

52:50

24% of race

Average Pace: 8:32 /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 mi11:46:2926:008:2226:00
8:22
#19119
10K
6.21 mi12:12:1051:418:1925:41
8:16
#18720
15K
9.32 mi12:37:471:17:188:1825:37
8:15
#18362
20K
12.43 mi13:03:341:43:058:1825:47
8:18
#17964
Half
13.11 mi13:09:081:48:398:175:34
8:10
#17897
25K
15.53 mi13:29:282:08:598:1820:20
8:23
#17604
30K
18.64 mi13:56:492:36:208:2327:21
8:48
#17382
20M
20.00 mi14:09:042:48:358:2612:15
9:01
#17323
21M
21.00 mi14:18:492:58:208:309:45
9:45
#17304
35K
21.75 mi14:25:063:04:378:296:17
8:24
#17197
23M
23.00 mi14:35:563:15:278:3010:50
8:39
#17000
24M
24.00 mi14:44:273:23:588:308:31
8:31
#16878
40K
24.85 mi14:51:483:31:198:307:21
8:36
#16749
25.2M
25.20 mi14:55:173:34:488:313:29
10:06
#16761
Finish
26.22 mi15:04:063:43:378:328:49
8:39
#16771
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi19119120901209017682(Top 62%)11501(Top 71%)11501(Top 204%)
10K6.21 mi3.10 mi18720+39911917+17311917+17318331(Top 65%)11771(Top 73%)11771(Top 209%)
15K9.32 mi3.11 mi18362+35811766+15111766+15117682(Top 62%)11501(Top 71%)11501(Top 204%)
20K12.43 mi3.11 mi17964+39811594+17211594+17216929(Top 60%)11146(Top 69%)11146(Top 198%)
Half13.11 mi0.68 mi17897+6711564+3011564+3016976(Top 60%)11167(Top 69%)11167(Top 198%)
25K15.53 mi2.42 mi17604+29311434+13011434+13016475(Top 58%)10856(Top 67%)10856(Top 192%)
30K18.64 mi3.11 mi17382+22211284+15011284+15016618(Top 59%)10759(Top 67%)10759(Top 191%)
20M20.00 mi1.36 mi17323+5911235+4911235+4916844(Top 59%)10741(Top 67%)10741(Top 190%)
21M21.00 mi1.00 mi17304+1911195+4011195+4017238(Top 61%)10797(Top 67%)10797(Top 191%)
35K21.75 mi0.75 mi17197+10711128+6711128+6714841(Top 52%)9658(Top 60%)9658(Top 171%)
23M23.00 mi1.25 mi17000+19711019+10911019+10914248(Top 50%)9283(Top 58%)9283(Top 165%)
24M24.00 mi1.00 mi16878+12210946+7310946+7314601(Top 51%)9414(Top 58%)9414(Top 167%)
40K24.85 mi0.85 mi16749+12910861+8510861+8514022(Top 49%)9014(Top 56%)9014(Top 160%)
25.2M25.20 mi0.35 mi16761-1210849+1210849+1217421(Top 61%)10561(Top 66%)10561(Top 187%)
Finish26.22 mi1.02 mi16771-1010833+1610833+1617166(Top 60%)10476(Top 65%)10476(Top 186%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

17682

Males

11501

M18-39

11501

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

18331

Males

11771

M18-39

11771

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

17682

Males

11501

M18-39

11501

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

16929

Males

11146

M18-39

11146

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

16976

Males

11167

M18-39

11167

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

16475

Males

10856

M18-39

10856

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

16618

Males

10759

M18-39

10759

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

16844

Males

10741

M18-39

10741

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

17238

Males

10797

M18-39

10797

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

14841

Males

9658

M18-39

9658

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

14248

Males

9283

M18-39

9283

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

14601

Males

9414

M18-39

9414

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

14022

Males

9014

M18-39

9014

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17421

Males

10561

M18-39

10561

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

17166

Males

10476

M18-39

10476

Passing Analysis

Category:
Athletes Passed
3060
Passed By
712
Net Change
+2348
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19119
5K → 10K513114+399#19119#18720
10K → 15K41254+358#18720#18362
15K → 20K43032+398#18362#17964
20K → Half769+67#17964#17897
Half → 25K32431+293#17897#17604
25K → 30K32199+222#17604#17382
30K → 20M13980+59#17382#17323
20M → 21M11394+19#17323#17304
21M → 35K12518+107#17304#17197
35K → 23M21922+197#17197#17000
23M → 24M14422+122#17000#16878
24M → 40K14718+129#16878#16749
40K → 25.2M3143-12#16749#16761
25.2M → Finish6676-10#16761#16771
TOTALS3060712+2348
📊

Passing Visuals

Category:
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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