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BOSTON MARATHON 2023

Rebecca Vandervoorn

Bib: 29668•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:53
Rank: #20337
Start → 5K
8:58/mi
27:53 split
10K· 6.21 mi
55:14
Rank: #20142 (+195)
5K → 10K
8:48/mi
27:21 split
15K· 9.32 mi
1:22:42
Rank: #19991 (+151)
10K → 15K
8:50/mi
27:28 split
20K· 12.43 mi
1:49:59
Rank: #19592 (+399)
15K → 20K
8:47/mi
27:17 split
Half· 13.11 mi
1:55:57
Rank: #19572 (+20)
20K → Half
8:45/mi
5:58 split
25K· 15.53 mi
2:17:37
Rank: #19402 (+170)
Half → 25K
8:56/mi
21:40 split
30K· 18.64 mi
2:45:42
Rank: #19046 (+356)
25K → 30K
9:02/mi
28:05 split
20M
2:58:02
Rank: #18883 (+163)
30K → 20M
9:05/mi
12:20 split
21M
3:07:56
Rank: #18802 (+81)
20M → 21M
9:54/mi
9:54 split
35K· 21.75 mi
3:14:37
Rank: #18747 (+55)
21M → 35K
8:56/mi
6:41 split
23M
3:26:14
Rank: #18651 (+96)
35K → 23M
9:17/mi
11:37 split
24M
3:35:27
Rank: #18638 (+13)
23M → 24M
9:13/mi
9:13 split
40K· 24.85 mi
3:43:40
Rank: #18650 (-12)
24M → 40K
9:37/mi
8:13 split
25.2M
3:47:17
Rank: #18672 (-22)
40K → 25.2M
10:29/mi
3:37 split
Finish· 26.22 mi
3:56:43
Rank: #18711 (-39)
25.2M → Finish
9:15/mi
9:26 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:57
Pace8:51 /mi
2nd Half
Distance13.11 mi
Time2:00:46
Pace9:13 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:2227:538:5827:53
8:58
-
10K
6.21 mi12:13:4355:148:5327:21
8:48
-0:10
15K
9.32 mi12:41:111:22:428:5227:28
8:50
+0:02
20K
12.43 mi13:08:281:49:598:5127:17
8:47
-0:03
Half
13.11 mi13:14:261:55:578:515:58
8:45
-0:02
25K
15.53 mi13:36:062:17:378:5221:40
8:56
+0:11
30K
18.64 mi14:04:112:45:428:5328:05
9:02
+0:06
20M
20.00 mi14:16:312:58:028:5412:20
9:05
+0:03
21M
21.00 mi14:26:253:07:568:579:54
9:54
+0:49
35K
21.75 mi14:33:063:14:378:576:41
8:56
-0:58
23M
23.00 mi14:44:433:26:148:5811:37
9:17
+0:21
24M
24.00 mi14:53:563:35:278:599:13
9:13
-0:04
40K
24.85 mi15:02:093:43:409:008:13
9:37
+0:24
25.2M
25.20 mi15:05:463:47:179:013:37
10:29
+0:52
Finish
26.22 mi15:15:123:56:439:029:26
9:15
-1:14

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

8:45 /mi

Average Pace

9:02 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:43:12

94% of race

Time at Steady Pace

9:54

4% of race

Time at Slower Pace

3:37

2% of race

Average Pace: 9:02 /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 mi11:46:2227:538:5827:53
8:58
#20337
10K
6.21 mi12:13:4355:148:5327:21
8:48
#20142
15K
9.32 mi12:41:111:22:428:5227:28
8:50
#19991
20K
12.43 mi13:08:281:49:598:5127:17
8:47
#19592
Half
13.11 mi13:14:261:55:578:515:58
8:45
#19572
25K
15.53 mi13:36:062:17:378:5221:40
8:56
#19402
30K
18.64 mi14:04:112:45:428:5328:05
9:02
#19046
20M
20.00 mi14:16:312:58:028:5412:20
9:05
#18883
21M
21.00 mi14:26:253:07:568:579:54
9:54
#18802
35K
21.75 mi14:33:063:14:378:576:41
8:56
#18747
23M
23.00 mi14:44:433:26:148:5811:37
9:17
#18651
24M
24.00 mi14:53:563:35:278:599:13
9:13
#18638
40K
24.85 mi15:02:093:43:409:008:13
9:37
#18650
25.2M
25.20 mi15:05:463:47:179:013:37
10:29
#18672
Finish
26.22 mi15:15:123:56:439:029:26
9:15
#18711
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi203378016801619741(Top 74%)7528(Top 66%)7528(Top 154%)
10K6.21 mi3.10 mi20142+1957847+1697847+16919946(Top 75%)7664(Top 67%)7664(Top 157%)
15K9.32 mi3.11 mi19991+1517733+1147733+11419741(Top 74%)7528(Top 66%)7528(Top 154%)
20K12.43 mi3.11 mi19592+3997483+2507483+25018577(Top 70%)6836(Top 60%)6836(Top 140%)
Half13.11 mi0.68 mi19572+207470+137470+1319228(Top 72%)7219(Top 63%)7219(Top 148%)
25K15.53 mi2.42 mi19402+1707358+1127358+11218658(Top 70%)6939(Top 61%)6939(Top 142%)
30K18.64 mi3.11 mi19046+3567163+1957163+19517394(Top 65%)6300(Top 55%)6300(Top 129%)
20M20.00 mi1.36 mi18883+1637091+727091+7216965(Top 64%)6145(Top 54%)6145(Top 126%)
21M21.00 mi1.00 mi18802+817055+367055+3617672(Top 66%)6571(Top 58%)6571(Top 135%)
35K21.75 mi0.75 mi18747+557027+287027+2817659(Top 66%)6645(Top 58%)6645(Top 136%)
23M23.00 mi1.25 mi18651+966985+426985+4217438(Top 66%)6533(Top 57%)6533(Top 134%)
24M24.00 mi1.00 mi18638+136988-36988-318138(Top 68%)6974(Top 61%)6974(Top 143%)
40K24.85 mi0.85 mi18650-127008-207008-2018742(Top 70%)7351(Top 64%)7351(Top 151%)
25.2M25.20 mi0.35 mi18672-227031-237031-2319086(Top 72%)7547(Top 66%)7547(Top 155%)
Finish26.22 mi1.02 mi18711-397055-247055-2419191(Top 72%)7545(Top 66%)7545(Top 154%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

19741

Females

7528

F18-39

7528

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

19946

Females

7664

F18-39

7664

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

19741

Females

7528

F18-39

7528

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18577

Females

6836

F18-39

6836

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

19228

Females

7219

F18-39

7219

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

18658

Females

6939

F18-39

6939

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

17394

Females

6300

F18-39

6300

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

16965

Females

6145

F18-39

6145

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

17672

Females

6571

F18-39

6571

21M→35K

21.0 - 21.8 mi

Top 66%
×7story building
+17ft-86ft

Overall

17659

Females

6645

F18-39

6645

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

17438

Females

6533

F18-39

6533

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

18138

Females

6974

F18-39

6974

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18742

Females

7351

F18-39

7351

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19086

Females

7547

F18-39

7547

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

19191

Females

7545

F18-39

7545

Passing Analysis

Category:
Athletes Passed
2429
Passed By
803
Net Change
+1626
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20337
5K → 10K420225+195#20337#20142
10K → 15K269118+151#20142#19991
15K → 20K42526+399#19991#19592
20K → Half4222+20#19592#19572
Half → 25K21747+170#19572#19402
25K → 30K39034+356#19402#19046
30K → 20M17815+163#19046#18883
20M → 21M12342+81#18883#18802
21M → 35K7823+55#18802#18747
35K → 23M12529+96#18747#18651
23M → 24M5946+13#18651#18638
24M → 40K4658-12#18638#18650
40K → 25.2M2244-22#18650#18672
25.2M → Finish3574-39#18672#18711
TOTALS2429803+1626
📊

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