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BOSTON MARATHON 2025

Hans De Frel

Bib: 1122•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 2%
Gender (Male)
#0 / 16105
Top 3%
Age Group (M18-39)
#0 / 5642
Top 9%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
17:51
Rank: #505
Start → 5K
17:51 | 5:45/mi
10K· 6.21 mi
35:59
Rank: #583 (-78)
5K → 10K
18:08 | 5:50/mi
15K· 9.32 mi
54:14
Rank: #603 (-20)
10K → 15K
18:15 | 5:52/mi
20K· 12.43 mi
1:13:09
Rank: #709 (-106)
15K → 20K
18:55 | 6:05/mi
Half· 13.11 mi
1:17:16
Rank: #726 (-17)
20K → Half
4:07 | 6:02/mi
25K· 15.53 mi
1:31:49
Rank: #724 (+2)
Half → 25K
14:33 | 6:00/mi
30K· 18.64 mi
1:51:18
Rank: #763 (-39)
25K → 30K
19:29 | 6:16/mi
20M
1:59:43
Rank: #740 (+23)
30K → 20M
8:25 | 6:12/mi
21M
2:06:19
Rank: #738 (+2)
20M → 21M
6:36 | 6:36/mi
35K· 21.75 mi
2:10:44
Rank: #708 (+30)
21M → 35K
4:25 | 5:54/mi
23M
2:18:22
Rank: #681 (+27)
35K → 23M
7:38 | 6:06/mi
24M
2:24:13
Rank: #650 (+31)
23M → 24M
5:51 | 5:51/mi
40K· 24.85 mi
2:29:18
Rank: #632 (+18)
24M → 40K
5:05 | 5:57/mi
25.2M
2:31:31
Rank: #619 (+13)
40K → 25.2M
2:13 | 6:26/mi
Finish· 26.22 mi
2:37:23
Rank: #600 (+19)
25.2M → Finish
5:52 | 5:45/mi
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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:16
Pace5:54 /mi
2nd Half
Distance13.11 mi
Time1:20:07
Pace6:07 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:5417:515:4517:51
5:45
-
10K
6.21 mi10:36:0235:595:4718:08
5:50
+0:05
15K
9.32 mi10:54:1754:145:4918:15
5:52
+0:02
20K
12.43 mi11:13:121:13:095:5318:55
6:05
+0:13
Half
13.11 mi11:17:191:17:165:544:07
6:02
-0:03
25K
15.53 mi11:31:521:31:495:5514:33
6:00
-0:02
30K
18.64 mi11:51:211:51:185:5819:29
6:16
+0:16
20M
20.00 mi11:59:461:59:435:598:25
6:12
-0:04
21M
21.00 mi12:06:222:06:196:016:36
6:36
+0:24
35K
21.75 mi12:10:472:10:446:014:25
5:54
-0:42
23M
23.00 mi12:18:252:18:226:017:38
6:06
+0:12
24M
24.00 mi12:24:162:24:136:015:51
5:51
-0:15
40K
24.85 mi12:29:212:29:186:005:05
5:57
+0:06
25.2M
25.20 mi12:31:342:31:316:012:13
6:26
+0:29
Finish
26.22 mi12:37:262:37:236:005:52
5:45
-0:41

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

5:45 /mi

Average Pace

6:00 /mi

Slowest Pace

6:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:28:34

94% of race

Time at Steady Pace

8:49

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:00 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:17:5417:515:4517:51
5:45
#505
10K
6.21 mi10:36:0235:595:4718:08
5:50
#583
15K
9.32 mi10:54:1754:145:4918:15
5:52
#603
20K
12.43 mi11:13:121:13:095:5318:55
6:05
#709
Half
13.11 mi11:17:191:17:165:544:07
6:02
#726
25K
15.53 mi11:31:521:31:495:5514:33
6:00
#724
30K
18.64 mi11:51:211:51:185:5819:29
6:16
#763
20M
20.00 mi11:59:461:59:435:598:25
6:12
#740
21M
21.00 mi12:06:222:06:196:016:36
6:36
#738
35K
21.75 mi12:10:472:10:446:014:25
5:54
#708
23M
23.00 mi12:18:252:18:226:017:38
6:06
#681
24M
24.00 mi12:24:162:24:136:015:51
5:51
#650
40K
24.85 mi12:29:212:29:186:005:05
5:57
#632
25.2M
25.20 mi12:31:342:31:316:012:13
6:26
#619
Finish
26.22 mi12:37:262:37:236:005:52
5:45
#600
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi505467467699(Top 2%)653(Top 4%)653(Top 12%)
10K6.21 mi3.10 mi583-78545-78545-78676(Top 2%)631(Top 4%)631(Top 11%)
15K9.32 mi3.11 mi603-20559-14559-14699(Top 2%)653(Top 4%)653(Top 12%)
20K12.43 mi3.11 mi709-106661-102661-1021127(Top 4%)1063(Top 7%)1063(Top 19%)
Half13.11 mi0.68 mi726-17677-16677-161227(Top 4%)1161(Top 7%)1161(Top 21%)
25K15.53 mi2.42 mi724+2676+1676+1796(Top 3%)746(Top 5%)746(Top 13%)
30K18.64 mi3.11 mi763-39715-39715-391115(Top 4%)1049(Top 7%)1049(Top 19%)
20M20.00 mi1.36 mi740+23693+22693+22702(Top 2%)661(Top 4%)661(Top 12%)
21M21.00 mi1.00 mi738+2690+3690+3895(Top 3%)845(Top 5%)845(Top 15%)
35K21.75 mi0.75 mi708+30660+30660+30528(Top 2%)492(Top 3%)492(Top 9%)
23M23.00 mi1.25 mi681+27633+27633+27479(Top 2%)451(Top 3%)451(Top 8%)
24M24.00 mi1.00 mi650+31602+31602+31329(Top 1%)305(Top 2%)305(Top 5%)
40K24.85 mi0.85 mi632+18584+18584+18338(Top 1%)312(Top 2%)312(Top 6%)
25.2M25.20 mi0.35 mi619+13571+13571+13358(Top 1%)332(Top 2%)332(Top 6%)
Finish26.22 mi1.02 mi600+19554+17554+17440(Top 2%)413(Top 3%)413(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

699

Males

653

M18-39

653

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

676

Males

631

M18-39

631

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

699

Males

653

M18-39

653

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1127

Males

1063

M18-39

1063

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1227

Males

1161

M18-39

1161

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

796

Males

746

M18-39

746

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1115

Males

1049

M18-39

1049

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

702

Males

661

M18-39

661

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

895

Males

845

M18-39

845

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

528

Males

492

M18-39

492

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

479

Males

451

M18-39

451

23M→24M

23.0 - 24.0 mi

Top 1%
×6stories
+12ft-82ft

Overall

329

Males

305

M18-39

305

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

338

Males

312

M18-39

312

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

358

Males

332

M18-39

332

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

440

Males

413

M18-39

413

Passing Analysis

Category:
Athletes Passed
268
Passed By
363
Net Change
-95
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#505
5K → 10K785-78#505#583
10K → 15K1030-20#583#603
15K → 20K6112-106#603#709
20K → Half118-17#709#726
Half → 25K2725+2#726#724
25K → 30K2261-39#724#763
30K → 20M285+23#763#740
20M → 21M2119+2#740#738
21M → 35K311+30#738#708
35K → 23M281+27#708#681
23M → 24M310+31#681#650
24M → 40K213+18#650#632
40K → 25.2M130+13#632#619
25.2M → Finish223+19#619#600
TOTALS268363-95
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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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