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BOSTON MARATHON 2025

Floris De Roy Van Zuidewijn

Bib: 1568•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 39%
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
6:32/mi
20:19
↑ 97↓ 3451.5%
10K· 6.21 mi
6:45/mi
41:18
↑ 79↓ 1380.4%
15K· 9.32 mi
6:48/mi
1:02:26
↑ 67↓ 78
20K· 12.43 mi
7:19/mi
1:25:11
↑ 106↓ 860.1%
Half· 13.11 mi
7:27/mi
1:30:16
↑ 19↓ 370.5%
25K· 15.53 mi
7:50/mi
1:49:15
↑ 66↓ 880.2%
30K· 18.64 mi
8:16/mi
2:14:57
↑ 181↓ 1480.2%
20M
9:29/mi
2:27:50
↑ 64↓ 500.2%
21M
9:36/mi
2:37:26
↑ 106↓ 241.6%
35K· 21.75 mi
9:39/mi
2:44:39
↑ 17↓ 861.7%
23M
8:54/mi
2:55:47
↑ 23↓ 630.6%
24M
8:31/mi
3:04:18
↓ 821.3%
40K· 24.85 mi
8:37/mi
3:11:40
↓ 200.3%
25.2M
9:34/mi
3:14:58
↑ 13↓ 160.2%
Finish· 26.22 mi
7:43/mi
3:22:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:16
Pace6:53 /mi
2nd Half
Distance13.11 mi
Time1:52:34
Pace8:35 /mi
📊Positive Split: 24.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1820:196:3220:19
6:32
-
10K
6.21 mi10:42:1741:186:3920:59
6:45
+0:13
15K
9.32 mi11:03:251:02:266:4221:08
6:48
+0:03
20K
12.43 mi11:26:101:25:116:5122:45
7:19
+0:31
Half
13.11 mi11:31:151:30:166:535:05
7:27
+0:08
25K
15.53 mi11:50:141:49:157:0218:59
7:50
+0:23
30K
18.64 mi12:15:562:14:577:1425:42
8:16
+0:26
20M
20.00 mi12:28:492:27:507:2312:53
9:29
+1:13
21M
21.00 mi12:38:252:37:267:309:36
9:36
+0:07
35K
21.75 mi12:45:382:44:397:347:13
9:39
+0:03
23M
23.00 mi12:56:462:55:477:3911:08
8:54
-0:45
24M
24.00 mi13:05:173:04:187:418:31
8:31
-0:23
40K
24.85 mi13:12:393:11:407:437:22
8:37
+0:06
25.2M
25.20 mi13:15:573:14:587:443:18
9:34
+0:57
Finish
26.22 mi13:23:493:22:507:457:52
7:43
-1:51

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

6:32 /mi

Average Pace

7:45 /mi

Slowest Pace

9:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:08

48% of race

Time at Steady Pace

1:00:34

30% of race

Time at Slower Pace

44:08

22% of race

Average Pace: 7:44 /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 mi10:21:1820:196:3220:19
6:32
#4141
10K
6.21 mi10:42:1741:186:3920:59
6:45
#4909
15K
9.32 mi11:03:251:02:266:4221:08
6:48
#5250
20K
12.43 mi11:26:101:25:116:5122:45
7:19
#6444
Half
13.11 mi11:31:151:30:166:535:05
7:27
#6722
25K
15.53 mi11:50:141:49:157:0218:59
7:50
#7468
30K
18.64 mi12:15:562:14:577:1425:42
8:16
#8338
20M
20.00 mi12:28:492:27:507:2312:53
9:29
#9320
21M
21.00 mi12:38:252:37:267:309:36
9:36
#9774
35K
21.75 mi12:45:382:44:397:347:13
9:39
#10372
23M
23.00 mi12:56:462:55:477:3911:08
8:54
#10682
24M
24.00 mi13:05:173:04:187:418:31
8:31
#10847
40K
24.85 mi13:12:393:11:407:437:22
8:37
#10953
25.2M
25.20 mi13:15:573:14:587:443:18
9:34
#11002
Finish
26.22 mi13:23:493:22:507:457:52
7:43
#10975
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4141390539056117(Top 22%)5557(Top 35%)5557(Top 98%)
10K6.21 mi3.10 mi4909-7684582-6774582-6775904(Top 21%)5405(Top 34%)5405(Top 96%)
15K9.32 mi3.11 mi5250-3414874-2924874-2926117(Top 22%)5557(Top 35%)5557(Top 98%)
20K12.43 mi3.11 mi6444-11945835-9615835-9619223(Top 32%)7580(Top 47%)7580(Top 134%)
Half13.11 mi0.68 mi6722-2786067-2326067-23211257(Top 40%)8668(Top 54%)8668(Top 154%)
25K15.53 mi2.42 mi7468-7466588-5216588-52112568(Top 44%)9094(Top 56%)9094(Top 161%)
30K18.64 mi3.11 mi8338-8707084-4967084-49613293(Top 47%)9258(Top 57%)9258(Top 164%)
20M20.00 mi1.36 mi9320-9827611-5277611-52719067(Top 67%)11715(Top 73%)11715(Top 208%)
21M21.00 mi1.00 mi9774-4547833-2227833-22216510(Top 58%)10469(Top 65%)10469(Top 186%)
35K21.75 mi0.75 mi10372-5988095-2628095-26220811(Top 73%)12349(Top 77%)12349(Top 219%)
23M23.00 mi1.25 mi10682-3108205-1108205-11015612(Top 55%)9894(Top 61%)9894(Top 175%)
24M24.00 mi1.00 mi10847-1658248-438248-4314578(Top 51%)9391(Top 58%)9391(Top 166%)
40K24.85 mi0.85 mi10953-1068255-78255-714119(Top 50%)9046(Top 56%)9046(Top 160%)
25.2M25.20 mi0.35 mi11002-498262-78262-714861(Top 52%)9319(Top 58%)9319(Top 165%)
Finish26.22 mi1.02 mi10975+278216+468216+4610830(Top 38%)7422(Top 46%)7422(Top 132%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21story building
+97ft-345ft

Overall

6117

Males

5557

M18-39

5557

5K→10K

3.1 - 6.2 mi

Top 21%
×5story building
+79ft-138ft

Overall

5904

Males

5405

M18-39

5405

10K→15K

6.2 - 9.3 mi

Top 22%
×3story building
+67ft-78ft

Overall

6117

Males

5557

M18-39

5557

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

9223

Males

7580

M18-39

7580

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

11257

Males

8668

M18-39

8668

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

12568

Males

9094

M18-39

9094

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

13293

Males

9258

M18-39

9258

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

19067

Males

11715

M18-39

11715

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

16510

Males

10469

M18-39

10469

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

20811

Males

12349

M18-39

12349

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15612

Males

9894

M18-39

9894

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

14578

Males

9391

M18-39

9391

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

14119

Males

9046

M18-39

9046

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14861

Males

9319

M18-39

9319

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2story building
+22ft-21ft

Overall

10830

Males

7422

M18-39

7422

Passing Analysis

Category:
Athletes Passed
390
Passed By
7222
Net Change
-6834
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4141
5K → 10K8776-768#4141#4909
10K → 15K45386-341#4909#5250
15K → 20K71201-1194#5250#6444
20K → Half1279-278#6444#6722
Half → 25K18764-746#6722#7468
25K → 30K44914-870#7468#8338
30K → 20M12994-982#8338#9320
20M → 21M18472-454#9320#9774
21M → 35K6602-598#9774#10372
35K → 23M47357-310#10372#10682
23M → 24M37202-165#10682#10847
24M → 40K42148-106#10847#10953
40K → 25.2M2776-49#10953#11002
25.2M → Finish7851+27#11002#10975
TOTALS3907222-6834
📊

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