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BOSTON MARATHON 2026

Sanne Velzeboer

Bib: 20323β€’F

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Top 49%
Age Group (F40-44)
#0 / 1737
Race Day Weather
51Β°/41Β°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
24:12
3.11 mi
Rank: #15348
Start β†’ 5K
24:12 | 7:48/mi
10K
48:36
6.21 mi
Rank: #15699 (-351)
5K β†’ 10K
24:24 | 7:52/mi
15K
1:14:16
9.32 mi
Rank: #16816 (-1117)
10K β†’ 15K
25:40 | 8:16/mi
20K
1:39:32
12.43 mi
Rank: #16865 (-49)
15K β†’ 20K
25:16 | 8:08/mi
HALF
1:45:01
13.11 mi
Rank: #16894 (-29)
20K β†’ HALF
5:29 | 8:03/mi
25K
2:05:25
15.53 mi
Rank: #17107 (-213)
HALF β†’ 25K
20:24 | 8:25/mi
30K
2:33:09
18.64 mi
Rank: #17486 (-379)
25K β†’ 30K
27:44 | 8:56/mi
20M
2:45:45
20.00 mi
Rank: #17719 (-233)
30K β†’ 20M
12:36 | 9:17/mi
21M
2:57:30
21.00 mi
Rank: #18380 (-661)
20M β†’ 21M
11:45 | 11:45/mi
35K
3:04:29
21.75 mi
Rank: #18518 (-138)
21M β†’ 35K
6:59 | 9:21/mi
23M
3:16:33
23.00 mi
Rank: #18715 (-197)
35K β†’ 23M
12:04 | 9:39/mi
24M
3:25:55
24.00 mi
Rank: #18829 (-114)
23M β†’ 24M
9:22 | 9:22/mi
40K
3:33:56
24.85 mi
Rank: #18879 (-50)
24M β†’ 40K
8:01 | 9:23/mi
25.2M
3:37:34
25.20 mi
Rank: #18939 (-60)
40K β†’ 25.2M
3:38 | 10:33/mi
FINISH
3:46:49
26.22 mi
Rank: #19037 (-98)
25.2M β†’ FINISH
9:15 | 9:05/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:45:01
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time2:01:48
Pace9:18 /mi
πŸ“ŠPositive Split: 16.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:08:5424:127:4824:12
7:48
-
10K
6.21 mi11:33:1848:367:5024:24
7:52
+0:04
15K
9.32 mi11:58:581:14:167:5925:40
8:16
+0:24
20K
12.43 mi12:24:141:39:328:0125:16
8:08
-0:08
HALF
13.11 mi12:29:431:45:018:015:29
8:03
-0:05
25K
15.53 mi12:50:072:05:258:0520:24
8:25
+0:22
30K
18.64 mi13:17:512:33:098:1327:44
8:56
+0:31
20M
20.00 mi13:30:272:45:458:1812:36
9:17
+0:21
21M
21.00 mi13:42:122:57:308:2811:45
11:45
+2:28
35K
21.75 mi13:49:113:04:298:296:59
9:21
-2:24
23M
23.00 mi14:01:153:16:338:3312:04
9:39
+0:18
24M
24.00 mi14:10:373:25:558:359:22
9:22
-0:17
40K
24.85 mi14:18:383:33:568:378:01
9:23
+0:01
25.2M
25.20 mi14:22:163:37:348:393:38
10:33
+1:10
FINISH
26.22 mi14:31:313:46:498:409:15
9:05
-1:28

Checkpoint Splits Visualizations

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

πŸ“ˆPace 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

7:48 /mi

Average Pace

8:39 /mi

Slowest Pace

11:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

2:05:25

55% of race

Time at Steady Pace

1:13:57

33% of race

Time at Slower Pace

27:27

12% of race

Average Pace: 8:39 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi11:08:5424:127:4824:12
7:48
#15348
10K
6.21 mi11:33:1848:367:5024:24
7:52
#15699
15K
9.32 mi11:58:581:14:167:5925:40
8:16
#16816
20K
12.43 mi12:24:141:39:328:0125:16
8:08
#16865
HALF
13.11 mi12:29:431:45:018:015:29
8:03
#16894
25K
15.53 mi12:50:072:05:258:0520:24
8:25
#17107
30K
18.64 mi13:17:512:33:098:1327:44
8:56
#17486
20M
20.00 mi13:30:272:45:458:1812:36
9:17
#17719
21M
21.00 mi13:42:122:57:308:2811:45
11:45
#18380
35K
21.75 mi13:49:113:04:298:296:59
9:21
#18518
23M
23.00 mi14:01:153:16:338:3312:04
9:39
#18715
24M
24.00 mi14:10:373:25:558:359:22
9:22
#18829
40K
24.85 mi14:18:383:33:568:378:01
9:23
#18879
25.2M
25.20 mi14:22:163:37:348:393:38
10:33
#18939
FINISH
26.22 mi14:31:313:46:498:409:15
9:05
#19037
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi153484906490618754(Top 65%)6899(Top 55%)6899(Top 397%)
10K6.21 mi3.10 mi15699-3515144-2385144-23816113(Top 56%)5377(Top 43%)5377(Top 310%)
15K9.32 mi3.11 mi16816-11175815-6715815-67118754(Top 65%)6899(Top 55%)6899(Top 397%)
20K12.43 mi3.11 mi16865-495856-415856-4117092(Top 59%)5978(Top 48%)5978(Top 344%)
HALF13.11 mi0.68 mi16894-295874-185874-1817496(Top 60%)6217(Top 49%)6217(Top 358%)
25K15.53 mi2.42 mi17107-2136002-1286002-12818084(Top 62%)6611(Top 53%)6611(Top 381%)
30K18.64 mi3.11 mi17486-3796229-2276229-22719233(Top 66%)7341(Top 58%)7341(Top 423%)
20M20.00 mi1.36 mi17719-2336391-1626391-16220193(Top 70%)7907(Top 63%)7907(Top 455%)
21M21.00 mi1.00 mi18380-6616791-4006791-40024642(Top 85%)10314(Top 82%)10314(Top 594%)
35K21.75 mi0.75 mi18518-1386874-836874-8321286(Top 73%)8585(Top 68%)8585(Top 494%)
23M23.00 mi1.25 mi18715-1977013-1397013-13921067(Top 73%)8501(Top 68%)8501(Top 489%)
24M24.00 mi1.00 mi18829-1147093-807093-8020873(Top 72%)8475(Top 67%)8475(Top 488%)
40K24.85 mi0.85 mi18879-507139-467139-4619945(Top 69%)8047(Top 64%)8047(Top 463%)
25.2M25.20 mi0.35 mi18939-607183-447183-4421177(Top 73%)8643(Top 69%)8643(Top 498%)
FINISH26.22 mi1.02 mi19037-987250-677250-6720838(Top 72%)8490(Top 67%)8490(Top 489%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
Γ—21
+97ft-345ft

Overall

18754

Females

6899

F40-44

6899

5K→10K

3.1 - 6.2 mi

Top 56%
Γ—5
+79ft-138ft

Overall

16113

Females

5377

F40-44

5377

10K→15K

6.2 - 9.3 mi

Top 65%
Γ—3
+67ft-78ft

Overall

18754

Females

6899

F40-44

6899

15K→20K

9.3 - 12.4 mi

Top 59%
Γ—5
+106ft-86ft

Overall

17092

Females

5978

F40-44

5978

20K→HALF

12.4 - 13.1 mi

Top 60%
Γ—2
+19ft-37ft

Overall

17496

Females

6217

F40-44

6217

HALF→25K

13.1 - 15.5 mi

Top 62%
Γ—4
+66ft-88ft

Overall

18084

Females

6611

F40-44

6611

25K→30K

15.5 - 18.6 mi

Top 66%
Γ—9
+181ft-148ft

Overall

19233

Females

7341

F40-44

7341

30K→20M

18.6 - 20.0 mi

Top 70%
Γ—5
+64ft-50ft

Overall

20193

Females

7907

F40-44

7907

20M→21M

20.0 - 21.0 mi

Top 85%
Γ—8
+106ft-24ft

Overall

24642

Females

10314

F40-44

10314

21M→35K

21.0 - 21.8 mi

Top 73%
Γ—7
+17ft-86ft

Overall

21286

Females

8585

F40-44

8585

35K→23M

21.8 - 23.0 mi

Top 73%
Γ—5
+23ft-63ft

Overall

21067

Females

8501

F40-44

8501

23M→24M

23.0 - 24.0 mi

Top 72%
Γ—6
+12ft-82ft

Overall

20873

Females

8475

F40-44

8475

24M→40K

24.0 - 24.9 mi

Top 69%
Γ—1
+6ft-20ft

Overall

19945

Females

8047

F40-44

8047

40K→25.2M

24.9 - 25.2 mi

Top 73%
Γ—1
+13ft-16ft

Overall

21177

Females

8643

F40-44

8643

25.2M→FINISH

25.2 - 26.2 mi

Top 72%
Γ—2
+22ft-21ft

Overall

20838

Females

8490

F40-44

8490

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
793
Passed By
2272
Net Change
-3689
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#15348
5K β†’ 10K166200-351#15348#15699
10K β†’ 15K23200-1117#15699#16816
15K β†’ 20K160200-49#16816#16865
20K β†’ HALF2756-29#16865#16894
HALF β†’ 25K74200-213#16894#17107
25K β†’ 30K98200-379#17107#17486
30K β†’ 20M36200-233#17486#17719
20M β†’ 21M8200-661#17719#18380
21M β†’ 35K27165-138#18380#18518
35K β†’ 23M45200-197#18518#18715
23M β†’ 24M34148-114#18715#18829
24M β†’ 40K4797-50#18829#18879
40K β†’ 25.2M1070-60#18879#18939
25.2M β†’ FINISH38136-98#18939#19037
TOTALS7932272-3689
πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing