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BOSTON MARATHON 2025

Mathias Schaefer

Bib: 1185•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 21%
Gender (Male)
#0 / 16105
Top 32%
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
19:15
Rank: #1846
Start → 5K
19:15 | 6:12/mi
10K· 6.21 mi
38:45
Rank: #2057 (-211)
5K → 10K
19:30 | 6:17/mi
15K· 9.32 mi
59:06
Rank: #2645 (-588)
10K → 15K
20:21 | 6:33/mi
20K· 12.43 mi
1:19:41
Rank: #2940 (-295)
15K → 20K
20:35 | 6:38/mi
Half· 13.11 mi
1:24:12
Rank: #3011 (-71)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:40:53
Rank: #3339 (-328)
Half → 25K
16:41 | 6:53/mi
30K· 18.64 mi
2:03:30
Rank: #3792 (-453)
25K → 30K
22:37 | 7:17/mi
20M
2:14:09
Rank: #4166 (-374)
30K → 20M
10:39 | 7:50/mi
21M
2:22:51
Rank: #4629 (-463)
20M → 21M
8:42 | 8:42/mi
35K· 21.75 mi
2:28:01
Rank: #4606 (+23)
21M → 35K
5:10 | 6:54/mi
23M
2:38:08
Rank: #5008 (-402)
35K → 23M
10:07 | 8:05/mi
24M
2:45:28
Rank: #5083 (-75)
23M → 24M
7:20 | 7:20/mi
40K· 24.85 mi
2:53:31
Rank: #5465 (-382)
24M → 40K
8:03 | 9:25/mi
25.2M
2:57:19
Rank: #5668 (-203)
40K → 25.2M
3:48 | 11:01/mi
Finish· 26.22 mi
3:05:35
Rank: #5878 (-210)
25.2M → Finish
8:16 | 8:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:12
Pace6:25 /mi
2nd Half
Distance13.11 mi
Time1:41:23
Pace7:44 /mi
📊Positive Split: 20.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:3219:156:1219:15
6:12
-
10K
6.21 mi10:39:0238:456:1419:30
6:17
+0:05
15K
9.32 mi10:59:2359:066:2020:21
6:33
+0:16
20K
12.43 mi11:19:581:19:416:2520:35
6:38
+0:05
Half
13.11 mi11:24:291:24:126:254:31
6:37
-0:01
25K
15.53 mi11:41:101:40:536:3016:41
6:53
+0:16
30K
18.64 mi12:03:472:03:306:3822:37
7:17
+0:24
20M
20.00 mi12:14:262:14:096:4210:39
7:50
+0:33
21M
21.00 mi12:23:082:22:516:488:42
8:42
+0:52
35K
21.75 mi12:28:182:28:016:485:10
6:54
-1:48
23M
23.00 mi12:38:252:38:086:5310:07
8:05
+1:11
24M
24.00 mi12:45:452:45:286:547:20
7:20
-0:45
40K
24.85 mi12:53:482:53:316:598:03
9:25
+2:05
25.2M
25.20 mi12:57:362:57:197:023:48
11:01
+1:36
Finish
26.22 mi13:05:523:05:357:058:16
8:07
-2:54

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

6:12 /mi

Average Pace

7:05 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:12

45% of race

Time at Steady Pace

1:02:27

34% of race

Time at Slower Pace

38:56

21% of race

Average Pace: 7:05 /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 mi10:19:3219:156:1219:15
6:12
#1846
10K
6.21 mi10:39:0238:456:1419:30
6:17
#2057
15K
9.32 mi10:59:2359:066:2020:21
6:33
#2645
20K
12.43 mi11:19:581:19:416:2520:35
6:38
#2940
Half
13.11 mi11:24:291:24:126:254:31
6:37
#3011
25K
15.53 mi11:41:101:40:536:3016:41
6:53
#3339
30K
18.64 mi12:03:472:03:306:3822:37
7:17
#3792
20M
20.00 mi12:14:262:14:096:4210:39
7:50
#4166
21M
21.00 mi12:23:082:22:516:488:42
8:42
#4629
35K
21.75 mi12:28:182:28:016:485:10
6:54
#4606
23M
23.00 mi12:38:252:38:086:5310:07
8:05
#5008
24M
24.00 mi12:45:452:45:286:547:20
7:20
#5083
40K
24.85 mi12:53:482:53:316:598:03
9:25
#5465
25.2M
25.20 mi12:57:362:57:197:023:48
11:01
#5668
Finish
26.22 mi13:05:523:05:357:058:16
8:07
#5878
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1846175417543882(Top 14%)3662(Top 23%)3662(Top 65%)
10K6.21 mi3.10 mi2057-2111962-2081962-2082269(Top 8%)2170(Top 13%)2170(Top 38%)
15K9.32 mi3.11 mi2645-5882523-5612523-5613882(Top 14%)3662(Top 23%)3662(Top 65%)
20K12.43 mi3.11 mi2940-2952801-2782801-2783864(Top 14%)3642(Top 23%)3642(Top 65%)
Half13.11 mi0.68 mi3011-712870-692870-694575(Top 16%)4268(Top 27%)4268(Top 76%)
25K15.53 mi2.42 mi3339-3283174-3043174-3045502(Top 19%)4992(Top 31%)4992(Top 88%)
30K18.64 mi3.11 mi3792-4533575-4013575-4016324(Top 22%)5535(Top 34%)5535(Top 98%)
20M20.00 mi1.36 mi4166-3743900-3253900-3259232(Top 33%)7108(Top 44%)7108(Top 126%)
21M21.00 mi1.00 mi4629-4634293-3934293-39311624(Top 41%)8174(Top 51%)8174(Top 145%)
35K21.75 mi0.75 mi4606+234262+314262+314753(Top 17%)4196(Top 26%)4196(Top 74%)
23M23.00 mi1.25 mi5008-4024588-3264588-32610570(Top 37%)7506(Top 47%)7506(Top 133%)
24M24.00 mi1.00 mi5083-754639-514639-516574(Top 23%)5268(Top 33%)5268(Top 93%)
40K24.85 mi0.85 mi5465-3824940-3014940-30118316(Top 64%)10976(Top 68%)10976(Top 195%)
25.2M25.20 mi0.35 mi5668-2035086-1465086-14620625(Top 73%)12072(Top 75%)12072(Top 214%)
Finish26.22 mi1.02 mi5878-2105230-1445230-14413621(Top 48%)8810(Top 55%)8810(Top 156%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3882

Males

3662

M18-39

3662

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2269

Males

2170

M18-39

2170

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3882

Males

3662

M18-39

3662

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3864

Males

3642

M18-39

3642

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4575

Males

4268

M18-39

4268

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5502

Males

4992

M18-39

4992

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

6324

Males

5535

M18-39

5535

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

9232

Males

7108

M18-39

7108

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

11624

Males

8174

M18-39

8174

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4753

Males

4196

M18-39

4196

35K→23M

21.8 - 23.0 mi

Top 37%
×5stories
+23ft-63ft

Overall

10570

Males

7506

M18-39

7506

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

6574

Males

5268

M18-39

5268

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18316

Males

10976

M18-39

10976

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20625

Males

12072

M18-39

12072

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13621

Males

8810

M18-39

8810

Passing Analysis

Category:
Athletes Passed
288
Passed By
4320
Net Change
-4032
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1846
5K → 10K40251-211#1846#2057
10K → 15K6594-588#2057#2645
15K → 20K21316-295#2645#2940
20K → Half475-71#2940#3011
Half → 25K15343-328#3011#3339
25K → 30K32485-453#3339#3792
30K → 20M15389-374#3792#4166
20M → 21M11474-463#4166#4629
21M → 35K5229+23#4629#4606
35K → 23M25427-402#4606#5008
23M → 24M38113-75#5008#5083
24M → 40K8390-382#5083#5465
40K → 25.2M6209-203#5465#5668
25.2M → Finish15225-210#5668#5878
TOTALS2884320-4032
📊

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