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BOSTON MARATHON 2025

Koen Tavernier

Bib: 9993•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 23%
Gender (Male)
#0 / 16105
Top 36%
Masters (Masters Men)
#0 / 10463
Top 22%
Division (M55-59)
#0 / 1648
Top 7%
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
6:57/mi
21:35
↑ 97↓ 3451.5%
10K· 6.21 mi
6:49/mi
42:45
↑ 79↓ 1380.4%
15K· 9.32 mi
6:49/mi
1:03:57
↑ 67↓ 78
20K· 12.43 mi
6:50/mi
1:25:11
↑ 106↓ 860.1%
Half· 13.11 mi
6:47/mi
1:29:49
↑ 19↓ 370.5%
25K· 15.53 mi
6:57/mi
1:46:40
↑ 66↓ 880.2%
30K· 18.64 mi
7:17/mi
2:09:18
↑ 181↓ 1480.2%
20M
7:20/mi
2:19:16
↑ 64↓ 500.2%
21M
7:45/mi
2:27:01
↑ 106↓ 241.6%
35K· 21.75 mi
7:13/mi
2:32:25
↑ 17↓ 861.7%
23M
7:32/mi
2:41:51
↑ 23↓ 630.6%
24M
7:26/mi
2:49:17
↓ 821.3%
40K· 24.85 mi
8:49/mi
2:56:49
↓ 200.3%
25.2M
8:59/mi
2:59:55
↑ 13↓ 160.2%
Finish· 26.22 mi
8:31/mi
3:08:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:49
Pace6:51 /mi
2nd Half
Distance13.11 mi
Time1:38:47
Pace7:32 /mi
📊Positive Split: 10.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1721:356:5721:35
6:57
-
10K
6.21 mi11:09:2742:456:5321:10
6:49
-0:08
15K
9.32 mi11:30:391:03:576:5221:12
6:49
0:00
20K
12.43 mi11:51:531:25:116:5121:14
6:50
+0:01
Half
13.11 mi11:56:311:29:496:514:38
6:47
-0:03
25K
15.53 mi12:13:221:46:406:5216:51
6:57
+0:10
30K
18.64 mi12:36:002:09:186:5622:38
7:17
+0:20
20M
20.00 mi12:45:582:19:166:589:58
7:20
+0:03
21M
21.00 mi12:53:432:27:017:007:45
7:45
+0:25
35K
21.75 mi12:59:072:32:257:005:24
7:13
-0:32
23M
23.00 mi13:08:332:41:517:029:26
7:32
+0:19
24M
24.00 mi13:15:592:49:177:037:26
7:26
-0:06
40K
24.85 mi13:23:312:56:497:077:32
8:49
+1:23
25.2M
25.20 mi13:26:372:59:557:083:06
8:59
+0:10
Finish
26.22 mi13:35:183:08:367:128:41
8:31
-0:28

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

6:47 /mi

Average Pace

7:12 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:08:14

36% of race

Time at Steady Pace

1:33:18

49% of race

Time at Slower Pace

27:04

14% of race

Average Pace: 7:12 /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 mi10:48:1721:356:5721:35
6:57
#7404
10K
6.21 mi11:09:2742:456:5321:10
6:49
#7008
15K
9.32 mi11:30:391:03:576:5221:12
6:49
#6763
20K
12.43 mi11:51:531:25:116:5121:14
6:50
#6442
Half
13.11 mi11:56:311:29:496:514:38
6:47
#6426
25K
15.53 mi12:13:221:46:406:5216:51
6:57
#6308
30K
18.64 mi12:36:002:09:186:5622:38
7:17
#6238
20M
20.00 mi12:45:582:19:166:589:58
7:20
#6160
21M
21.00 mi12:53:432:27:017:007:45
7:45
#6104
35K
21.75 mi12:59:072:32:257:005:24
7:13
#6084
23M
23.00 mi13:08:332:41:517:029:26
7:32
#6022
24M
24.00 mi13:15:592:49:177:037:26
7:26
#6029
40K
24.85 mi13:23:312:56:497:077:32
8:49
#6287
25.2M
25.20 mi13:26:372:59:557:083:06
8:59
#6332
Finish
26.22 mi13:35:183:08:367:128:41
8:31
#6656
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi7404659865986328(Top 22%)5729(Top 36%)5729(Top 348%)
10K6.21 mi3.10 mi7008+3966298+3006298+3006530(Top 23%)5907(Top 37%)5907(Top 358%)
15K9.32 mi3.11 mi6763+2456097+2016097+2016328(Top 22%)5729(Top 36%)5729(Top 348%)
20K12.43 mi3.11 mi6442+3215833+2645833+2645652(Top 20%)5155(Top 32%)5155(Top 313%)
Half13.11 mi0.68 mi6426+165820+135820+136115(Top 22%)5536(Top 34%)5536(Top 336%)
25K15.53 mi2.42 mi6308+1185709+1115709+1115990(Top 21%)5394(Top 33%)5394(Top 327%)
30K18.64 mi3.11 mi6238+705622+875622+876366(Top 22%)5565(Top 35%)5565(Top 338%)
20M20.00 mi1.36 mi6160+785543+795543+796005(Top 21%)5207(Top 32%)5207(Top 316%)
21M21.00 mi1.00 mi6104+565485+585485+585921(Top 21%)5021(Top 31%)5021(Top 305%)
35K21.75 mi0.75 mi6084+205462+235462+236709(Top 24%)5528(Top 34%)5528(Top 335%)
23M23.00 mi1.25 mi6022+625402+605402+606813(Top 24%)5480(Top 34%)5480(Top 333%)
24M24.00 mi1.00 mi6029-75390+125390+127231(Top 25%)5664(Top 35%)5664(Top 344%)
40K24.85 mi0.85 mi6287-2585555-1655555-16515210(Top 54%)9521(Top 59%)9521(Top 578%)
25.2M25.20 mi0.35 mi6332-455571-165571-1611641(Top 41%)7775(Top 48%)7775(Top 472%)
Finish26.22 mi1.02 mi6656-3245764-1935764-19316308(Top 57%)10057(Top 62%)10057(Top 610%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21story building
+97ft-345ft

Overall

6328

Males

5729

M55-59

5729

5K→10K

3.1 - 6.2 mi

Top 23%
×5story building
+79ft-138ft

Overall

6530

Males

5907

M55-59

5907

10K→15K

6.2 - 9.3 mi

Top 22%
×3story building
+67ft-78ft

Overall

6328

Males

5729

M55-59

5729

15K→20K

9.3 - 12.4 mi

Top 20%
×5story building
+106ft-86ft

Overall

5652

Males

5155

M55-59

5155

20K→Half

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

6115

Males

5536

M55-59

5536

Half→25K

13.1 - 15.5 mi

Top 21%
×4story building
+66ft-88ft

Overall

5990

Males

5394

M55-59

5394

25K→30K

15.5 - 18.6 mi

Top 22%
×9story building
+181ft-148ft

Overall

6366

Males

5565

M55-59

5565

30K→20M

18.6 - 20.0 mi

Top 21%
×5story building
+64ft-50ft

Overall

6005

Males

5207

M55-59

5207

20M→21M

20.0 - 21.0 mi

Top 21%
×8story building
+106ft-24ft

Overall

5921

Males

5021

M55-59

5021

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6709

Males

5528

M55-59

5528

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6813

Males

5480

M55-59

5480

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

7231

Males

5664

M55-59

5664

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15210

Males

9521

M55-59

9521

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11641

Males

7775

M55-59

7775

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16308

Males

10057

M55-59

10057

Passing Analysis

Category:
Athletes Passed
1963
Passed By
1215
Net Change
+748
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7404
5K → 10K46266+396#7404#7008
10K → 15K28742+245#7008#6763
15K → 20K33817+321#6763#6442
20K → Half3216+16#6442#6426
Half → 25K17658+118#6426#6308
25K → 30K205135+70#6308#6238
30K → 20M11638+78#6238#6160
20M → 21M9842+56#6160#6104
21M → 35K4626+20#6104#6084
35K → 23M10240+62#6084#6022
23M → 24M5764-7#6022#6029
24M → 40K14272-258#6029#6287
40K → 25.2M1964-45#6287#6332
25.2M → Finish11335-324#6332#6656
TOTALS19631215+748
📊

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