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BOSTON MARATHON 2025

Trevor Sytsma

NC

Bib: 771 M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 1%
Gender (Male)
#0 / 16105
Top 2%
Division (M18-39)
#0 / 5642
Top 6%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
5:55/mi
18:24
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
5:54/mi
36:43
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
5:57/mi
55:11
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:01/mi
1:13:53
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
5:53/mi
1:17:54
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
5:53/mi
1:32:10
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
5:50/mi
1:50:18
↑ 181↓ 1480.2%
138 ft elev
20M
5:47/mi
1:58:09
↑ 64↓ 500.2%
148 ft elev
21M
6:09/mi
2:04:18
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
5:44/mi
2:08:35
↑ 17↓ 861.7%
156 ft elev
23M
5:51/mi
2:15:55
↑ 23↓ 630.6%
116 ft elev
24M
5:48/mi
2:21:43
↓ 821.3%
34 ft elev
40K· 24.85 mi
5:44/mi
2:26:37
↓ 200.3%
20 ft elev
25.2M
6:23/mi
2:28:49
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
5:41/mi
2:34:36
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:17:54
Pace5:57 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:16:42
Pace5:51 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:4118:245:5518:24
5:55
-
10K
6.21 mi10:37:0036:435:5518:19
5:54
-0:01
15K
9.32 mi10:55:2855:115:5518:28
5:57
+0:03
20K
12.43 mi11:14:101:13:535:5718:42
6:01
+0:04
Half
13.11 mi11:18:111:17:545:574:01
5:53
-0:08
25K
15.53 mi11:32:271:32:105:5614:16
5:53
0:00
30K
18.64 mi11:50:351:50:185:5518:08
5:50
-0:03
20M
20.00 mi11:58:261:58:095:547:51
5:47
-0:03
21M
21.00 mi12:04:352:04:185:556:09
6:09
+0:22
35K
21.75 mi12:08:522:08:355:554:17
5:44
-0:25
23M
23.00 mi12:16:122:15:555:557:20
5:51
+0:07
24M
24.00 mi12:22:002:21:435:545:48
5:48
-0:03
40K
24.85 mi12:26:542:26:375:544:54
5:44
-0:04
25.2M
25.20 mi12:29:062:28:495:542:12
6:23
+0:39
Finish
26.22 mi12:34:532:34:365:545:47
5:41
-0:42

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

5:41 /mi

Average Pace

5:54 /mi

Slowest Pace

6:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:24

99% of race

Time at Steady Pace

2:12

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:54 /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 mi10:18:4118:245:5518:24
5:55
#843
10K
6.21 mi10:37:0036:435:5518:19
5:54
#830
15K
9.32 mi10:55:2855:115:5518:28
5:57
#837
20K
12.43 mi11:14:101:13:535:5718:42
6:01
#845
Half
13.11 mi11:18:111:17:545:574:01
5:53
#842
25K
15.53 mi11:32:271:32:105:5614:16
5:53
#777
30K
18.64 mi11:50:351:50:185:5518:08
5:50
#630
20M
20.00 mi11:58:261:58:095:547:51
5:47
#567
21M
21.00 mi12:04:352:04:185:556:09
6:09
#541
35K
21.75 mi12:08:522:08:355:554:17
5:44
#519
23M
23.00 mi12:16:122:15:555:557:20
5:51
#480
24M
24.00 mi12:22:002:21:435:545:48
5:48
#459
40K
24.85 mi12:26:542:26:375:544:54
5:44
#429
25.2M
25.20 mi12:29:062:28:495:542:12
6:23
#426
Finish
26.22 mi12:34:532:34:365:545:47
5:41
#409
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi843789789860(Top 3%)808(Top 5%)808(Top 14%)
10K6.21 mi3.10 mi830+13777+12777+12804(Top 3%)753(Top 5%)753(Top 13%)
15K9.32 mi3.11 mi837-7785-8785-8860(Top 3%)808(Top 5%)808(Top 14%)
20K12.43 mi3.11 mi845-8794-9794-9905(Top 3%)853(Top 5%)853(Top 15%)
Half13.11 mi0.68 mi842+3791+3791+3772(Top 3%)726(Top 5%)726(Top 13%)
25K15.53 mi2.42 mi777+65727+64727+64538(Top 2%)497(Top 3%)497(Top 9%)
30K18.64 mi3.11 mi630+147583+144583+144278(Top 1.0%)255(Top 2%)255(Top 5%)
20M20.00 mi1.36 mi567+63522+61522+61167(Top 0.6%)151(Top 0.9%)151(Top 3%)
21M21.00 mi1.00 mi541+26496+26496+26227(Top 0.8%)210(Top 1%)210(Top 4%)
35K21.75 mi0.75 mi519+22476+20476+20295(Top 1%)274(Top 2%)274(Top 5%)
23M23.00 mi1.25 mi480+39441+35441+35211(Top 0.7%)195(Top 1%)195(Top 3%)
24M24.00 mi1.00 mi459+21422+19422+19281(Top 1.0%)259(Top 2%)259(Top 5%)
40K24.85 mi0.85 mi429+30396+26396+26149(Top 0.5%)141(Top 0.9%)141(Top 2%)
25.2M25.20 mi0.35 mi426+3393+3393+3303(Top 1%)281(Top 2%)281(Top 5%)
Finish26.22 mi1.02 mi409+17378+15378+15324(Top 1%)303(Top 2%)303(Top 5%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21story building
+97ft-345ft

Overall

860

Males

808

M18-39

808

5K→10K

3.1 - 6.2 mi

Top 3%
×5story building
+79ft-138ft

Overall

804

Males

753

M18-39

753

10K→15K

6.2 - 9.3 mi

Top 3%
×3story building
+67ft-78ft

Overall

860

Males

808

M18-39

808

15K→20K

9.3 - 12.4 mi

Top 3%
×5story building
+106ft-86ft

Overall

905

Males

853

M18-39

853

20K→Half

12.4 - 13.1 mi

Top 3%
×2story building
+19ft-37ft

Overall

772

Males

726

M18-39

726

Half→25K

13.1 - 15.5 mi

Top 2%
×4story building
+66ft-88ft

Overall

538

Males

497

M18-39

497

25K→30K

15.5 - 18.6 mi

Top 1.0%
×9story building
+181ft-148ft

Overall

278

Males

255

M18-39

255

30K→20M

18.6 - 20.0 mi

Top 0.6%
×5story building
+64ft-50ft

Overall

167

Males

151

M18-39

151

20M→21M

20.0 - 21.0 mi

Top 0.8%
×8story building
+106ft-24ft

Overall

227

Males

210

M18-39

210

21M→35K

21.0 - 21.8 mi

Top 1%
×7story building
+17ft-86ft

Overall

295

Males

274

M18-39

274

35K→23M

21.8 - 23.0 mi

Top 0.7%
×5story building
+23ft-63ft

Overall

211

Males

195

M18-39

195

23M→24M

23.0 - 24.0 mi

Top 1.0%
×6story building
+12ft-82ft

Overall

281

Males

259

M18-39

259

24M→40K

24.0 - 24.9 mi

Top 0.5%
×1story
+6ft-20ft

Overall

149

Males

141

M18-39

141

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

303

Males

281

M18-39

281

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2story building
+22ft-21ft

Overall

324

Males

303

M18-39

303

Passing Analysis

Category:
Athletes Passed
556
Passed By
122
Net Change
+434
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#843
5K → 10K5643+13#843#830
10K → 15K2330-7#830#837
15K → 20K2836-8#837#845
20K → Half96+3#845#842
Half → 25K661+65#842#777
25K → 30K1470+147#777#630
30K → 20M630+63#630#567
20M → 21M271+26#567#541
21M → 35K220+22#541#519
35K → 23M412+39#519#480
23M → 24M210+21#480#459
24M → 40K300+30#459#429
40K → 25.2M41+3#429#426
25.2M → Finish192+17#426#409
TOTALS556122+434
📊

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