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BOSTON MARATHON 2025

Jonathan Schiemann

Bib: 10137•M

IN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 21%
Gender (Male)
#0 / 16105
Top 33%
Masters (Masters Men)
#0 / 10463
Top 20%
Division (M45-49)
#0 / 2386
Top 26%
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
7:06/mi
22:03
↑ 97↓ 3451.5%
10K· 6.21 mi
6:58/mi
43:43
↑ 79↓ 1380.4%
15K· 9.32 mi
6:58/mi
1:05:23
↑ 67↓ 78
20K· 12.43 mi
7:04/mi
1:27:21
↑ 106↓ 860.1%
Half· 13.11 mi
6:49/mi
1:32:00
↑ 19↓ 370.5%
25K· 15.53 mi
7:00/mi
1:48:58
↑ 66↓ 880.2%
30K· 18.64 mi
7:13/mi
2:11:24
↑ 181↓ 1480.2%
20M
7:05/mi
2:21:01
↑ 64↓ 500.2%
21M
7:32/mi
2:28:33
↑ 106↓ 241.6%
35K· 21.75 mi
7:37/mi
2:34:15
↑ 17↓ 861.7%
23M
7:23/mi
2:43:30
↑ 23↓ 630.6%
24M
7:07/mi
2:50:37
↓ 821.3%
40K· 24.85 mi
7:05/mi
2:56:40
↓ 200.3%
25.2M
7:27/mi
2:59:14
↑ 13↓ 160.2%
Finish· 26.22 mi
7:01/mi
3:06:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:00
Pace7:01 /mi
2nd Half
Distance13.11 mi
Time1:34:23
Pace7:12 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0922:037:0622:03
7:06
-
10K
6.21 mi11:09:4943:437:0221:40
6:58
-0:08
15K
9.32 mi11:31:291:05:237:0121:40
6:58
0:00
20K
12.43 mi11:53:271:27:217:0221:58
7:04
+0:06
Half
13.11 mi11:58:061:32:007:014:39
6:49
-0:15
25K
15.53 mi12:15:041:48:587:0116:58
7:00
+0:11
30K
18.64 mi12:37:302:11:247:0322:26
7:13
+0:13
20M
20.00 mi12:47:072:21:017:039:37
7:05
-0:08
21M
21.00 mi12:54:392:28:337:047:32
7:32
+0:27
35K
21.75 mi13:00:212:34:157:065:42
7:37
+0:05
23M
23.00 mi13:09:362:43:307:079:15
7:23
-0:14
24M
24.00 mi13:16:432:50:377:077:07
7:07
-0:16
40K
24.85 mi13:22:462:56:407:066:03
7:05
-0:02
25.2M
25.20 mi13:25:202:59:147:072:34
7:27
+0:22
Finish
26.22 mi13:32:293:06:237:077:09
7:01
-0:26

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

6:49 /mi

Average Pace

7:07 /mi

Slowest Pace

7:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:09

93% of race

Time at Steady Pace

13:14

7% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:07 /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 mi10:48:0922:037:0622:03
7:06
#8592
10K
6.21 mi11:09:4943:437:0221:40
6:58
#8127
15K
9.32 mi11:31:291:05:237:0121:40
6:58
#7853
20K
12.43 mi11:53:271:27:217:0221:58
7:04
#7680
Half
13.11 mi11:58:061:32:007:014:39
6:49
#7606
25K
15.53 mi12:15:041:48:587:0116:58
7:00
#7355
30K
18.64 mi12:37:302:11:247:0322:26
7:13
#6990
20M
20.00 mi12:47:072:21:017:039:37
7:05
#6717
21M
21.00 mi12:54:392:28:337:047:32
7:32
#6526
35K
21.75 mi13:00:212:34:157:065:42
7:37
#6573
23M
23.00 mi13:09:362:43:307:079:15
7:23
#6466
24M
24.00 mi13:16:432:50:377:077:07
7:07
#6358
40K
24.85 mi13:22:462:56:407:066:03
7:05
#6238
25.2M
25.20 mi13:25:202:59:147:072:34
7:27
#6161
Finish
26.22 mi13:32:293:06:237:077:09
7:01
#6096
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi8592736973697444(Top 26%)6570(Top 41%)6570(Top 275%)
10K6.21 mi3.10 mi8127+4657061+3087061+3087744(Top 27%)6803(Top 42%)6803(Top 285%)
15K9.32 mi3.11 mi7853+2746882+1796882+1797444(Top 26%)6570(Top 41%)6570(Top 275%)
20K12.43 mi3.11 mi7680+1736753+1296753+1297318(Top 26%)6434(Top 40%)6434(Top 270%)
Half13.11 mi0.68 mi7606+746697+566697+566234(Top 22%)5619(Top 35%)5619(Top 235%)
25K15.53 mi2.42 mi7355+2516511+1866511+1866305(Top 22%)5619(Top 35%)5619(Top 235%)
30K18.64 mi3.11 mi6990+3656204+3076204+3076009(Top 21%)5310(Top 33%)5310(Top 223%)
20M20.00 mi1.36 mi6717+2735972+2325972+2324549(Top 16%)4133(Top 26%)4133(Top 173%)
21M21.00 mi1.00 mi6526+1915807+1655807+1654768(Top 17%)4202(Top 26%)4202(Top 176%)
35K21.75 mi0.75 mi6573-475823-165823-169402(Top 33%)7045(Top 44%)7045(Top 295%)
23M23.00 mi1.25 mi6466+1075729+945729+945961(Top 21%)4939(Top 31%)4939(Top 207%)
24M24.00 mi1.00 mi6358+1085624+1055624+1055285(Top 19%)4452(Top 28%)4452(Top 187%)
40K24.85 mi0.85 mi6238+1205518+1065518+1064325(Top 15%)3723(Top 23%)3723(Top 156%)
25.2M25.20 mi0.35 mi6161+775457+615457+613155(Top 11%)2796(Top 17%)2796(Top 117%)
Finish26.22 mi1.02 mi6096+655384+735384+735810(Top 20%)4607(Top 29%)4607(Top 193%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21story building
+97ft-345ft

Overall

7444

Males

6570

M45-49

6570

5K→10K

3.1 - 6.2 mi

Top 27%
×5story building
+79ft-138ft

Overall

7744

Males

6803

M45-49

6803

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+67ft-78ft

Overall

7444

Males

6570

M45-49

6570

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

7318

Males

6434

M45-49

6434

20K→Half

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

6234

Males

5619

M45-49

5619

Half→25K

13.1 - 15.5 mi

Top 22%
×4story building
+66ft-88ft

Overall

6305

Males

5619

M45-49

5619

25K→30K

15.5 - 18.6 mi

Top 21%
×9story building
+181ft-148ft

Overall

6009

Males

5310

M45-49

5310

30K→20M

18.6 - 20.0 mi

Top 16%
×5story building
+64ft-50ft

Overall

4549

Males

4133

M45-49

4133

20M→21M

20.0 - 21.0 mi

Top 17%
×8story building
+106ft-24ft

Overall

4768

Males

4202

M45-49

4202

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

9402

Males

7045

M45-49

7045

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

5961

Males

4939

M45-49

4939

23M→24M

23.0 - 24.0 mi

Top 19%
×6story building
+12ft-82ft

Overall

5285

Males

4452

M45-49

4452

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4325

Males

3723

M45-49

3723

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3155

Males

2796

M45-49

2796

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5810

Males

4607

M45-49

4607

Passing Analysis

Category:
Athletes Passed
2865
Passed By
369
Net Change
+2496
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8592
5K → 10K53267+465#8592#8127
10K → 15K31137+274#8127#7853
15K → 20K22956+173#7853#7680
20K → Half762+74#7680#7606
Half → 25K26413+251#7606#7355
25K → 30K38823+365#7355#6990
30K → 20M2763+273#6990#6717
20M → 21M1954+191#6717#6526
21M → 35K3683-47#6526#6573
35K → 23M13528+107#6573#6466
23M → 24M12012+108#6466#6358
24M → 40K1277+120#6358#6238
40K → 25.2M814+77#6238#6161
25.2M → Finish9530+65#6161#6096
TOTALS2865369+2496
📊

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