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BOSTON MARATHON 2023

Joanna Vahlsing

Bib: 25243•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
35:36
Rank: #26183
Start → 5K
35:36 | 11:28/mi
10K· 6.21 mi
1:14:12
Rank: #26362 (-179)
5K → 10K
38:36 | 12:25/mi
15K· 9.32 mi
1:55:08
Rank: #26444 (-82)
10K → 15K
40:56 | 13:11/mi
20K· 12.43 mi
2:39:34
Rank: #26517 (-73)
15K → 20K
44:26 | 14:18/mi
Half· 13.11 mi
2:49:24
Rank: #26533 (-16)
20K → Half
9:50 | 14:25/mi
25K· 15.53 mi
3:25:03
Rank: #26544 (-11)
Half → 25K
35:39 | 14:42/mi
30K· 18.64 mi
4:11:40
Rank: #26555 (-11)
25K → 30K
46:37 | 15:00/mi
20M
4:31:53
Rank: #26554 (+1)
30K → 20M
20:13 | 14:53/mi
21M
4:47:13
Rank: #26549 (+5)
20M → 21M
15:20 | 15:20/mi
35K· 21.75 mi
4:57:40
Rank: #26546 (+3)
21M → 35K
10:27 | 13:58/mi
23M
5:15:24
Rank: #26535 (+11)
35K → 23M
17:44 | 14:10/mi
24M
5:28:45
Rank: #26525 (+10)
23M → 24M
13:21 | 13:21/mi
40K· 24.85 mi
5:40:34
Rank: #26517 (+8)
24M → 40K
11:49 | 13:49/mi
25.2M
5:45:38
Rank: #26508 (+9)
40K → 25.2M
5:04 | 14:42/mi
Finish· 26.22 mi
5:58:19
Rank: #26489 (+19)
25.2M → Finish
12:41 | 12:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:49:24
Pace12:55 /mi
2nd Half
Distance13.11 mi
Time3:08:55
Pace14:25 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2735:3611:2835:36
11:28
-
10K
6.21 mi12:30:031:14:1211:5638:36
12:25
+0:57
15K
9.32 mi13:10:591:55:0812:2140:56
13:11
+0:46
20K
12.43 mi13:55:252:39:3412:5044:26
14:18
+1:07
Half
13.11 mi14:05:152:49:2412:559:50
14:25
+0:07
25K
15.53 mi14:40:543:25:0313:1235:39
14:42
+0:17
30K
18.64 mi15:27:314:11:4013:3046:37
15:00
+0:18
20M
20.00 mi15:47:444:31:5313:3620:13
14:53
-0:07
21M
21.00 mi16:03:044:47:1313:4115:20
15:20
+0:27
35K
21.75 mi16:13:314:57:4013:4110:27
13:58
-1:22
23M
23.00 mi16:31:155:15:2413:4317:44
14:10
+0:12
24M
24.00 mi16:44:365:28:4513:4213:21
13:21
-0:49
40K
24.85 mi16:56:255:40:3413:4211:49
13:49
+0:28
25.2M
25.20 mi17:01:295:45:3813:435:04
14:42
+0:53
Finish
26.22 mi17:14:105:58:1913:4112:41
12:27
-2:15

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

11:28 /mi

Average Pace

13:41 /mi

Slowest Pace

15:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:10

39% of race

Time at Steady Pace

1:34:16

26% of race

Time at Slower Pace

2:02:53

34% of race

Average Pace: 13:40 /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 mi11:51:2735:3611:2835:36
11:28
#26183
10K
6.21 mi12:30:031:14:1211:5638:36
12:25
#26362
15K
9.32 mi13:10:591:55:0812:2140:56
13:11
#26444
20K
12.43 mi13:55:252:39:3412:5044:26
14:18
#26517
Half
13.11 mi14:05:152:49:2412:559:50
14:25
#26533
25K
15.53 mi14:40:543:25:0313:1235:39
14:42
#26544
30K
18.64 mi15:27:314:11:4013:3046:37
15:00
#26555
20M
20.00 mi15:47:444:31:5313:3620:13
14:53
#26554
21M
21.00 mi16:03:044:47:1313:4115:20
15:20
#26549
35K
21.75 mi16:13:314:57:4013:4110:27
13:58
#26546
23M
23.00 mi16:31:155:15:2413:4317:44
14:10
#26535
24M
24.00 mi16:44:365:28:4513:4213:21
13:21
#26525
40K
24.85 mi16:56:255:40:3413:4211:49
13:49
#26517
25.2M
25.20 mi17:01:295:45:3813:435:04
14:42
#26508
Finish
26.22 mi17:14:105:58:1913:4112:41
12:27
#26489
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi26183111671116726525(Top 100%)11376(Top 100%)11376(Top 606%)
10K6.21 mi3.10 mi26362-17911269-10211269-10226451(Top 99%)11327(Top 99%)11327(Top 603%)
15K9.32 mi3.11 mi26444-8211324-5511324-5526525(Top 100%)11376(Top 100%)11376(Top 606%)
20K12.43 mi3.11 mi26517-7311374-5011374-5026554(Top 100%)11389(Top 100%)11389(Top 606%)
Half13.11 mi0.68 mi26533-1611387-1311387-1326572(Top 100%)11395(Top 100%)11395(Top 607%)
25K15.53 mi2.42 mi26544-1111391-411391-426508(Top 100%)11360(Top 99%)11360(Top 605%)
30K18.64 mi3.11 mi26555-1111393-211393-226419(Top 99%)11324(Top 99%)11324(Top 603%)
20M20.00 mi1.36 mi26554+111390+311390+326253(Top 99%)11258(Top 99%)11258(Top 599%)
21M21.00 mi1.00 mi26549+511385+511385+525923(Top 97%)11066(Top 97%)11066(Top 589%)
35K21.75 mi0.75 mi26546+311386-111386-126117(Top 98%)11191(Top 98%)11191(Top 596%)
23M23.00 mi1.25 mi26535+1111381+511381+525929(Top 97%)11110(Top 97%)11110(Top 592%)
24M24.00 mi1.00 mi26525+1011373+811373+825717(Top 97%)11037(Top 97%)11037(Top 588%)
40K24.85 mi0.85 mi26517+811368+511368+525589(Top 96%)10971(Top 96%)10971(Top 584%)
25.2M25.20 mi0.35 mi26508+911363+511363+525536(Top 96%)10950(Top 96%)10950(Top 583%)
Finish26.22 mi1.02 mi26489+1911354+911354+925650(Top 96%)11006(Top 96%)11006(Top 586%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21stories
+97ft-345ft

Overall

26525

Females

11376

F40-44

11376

5K→10K

3.1 - 6.2 mi

Top 99%
×5stories
+79ft-138ft

Overall

26451

Females

11327

F40-44

11327

10K→15K

6.2 - 9.3 mi

Top 100%
×3stories
+67ft-78ft

Overall

26525

Females

11376

F40-44

11376

15K→20K

9.3 - 12.4 mi

Top 100%
×5stories
+106ft-86ft

Overall

26554

Females

11389

F40-44

11389

20K→Half

12.4 - 13.1 mi

Top 100%
×2stories
+19ft-37ft

Overall

26572

Females

11395

F40-44

11395

Half→25K

13.1 - 15.5 mi

Top 100%
×4stories
+66ft-88ft

Overall

26508

Females

11360

F40-44

11360

25K→30K

15.5 - 18.6 mi

Top 99%
×9stories
+181ft-148ft

Overall

26419

Females

11324

F40-44

11324

30K→20M

18.6 - 20.0 mi

Top 99%
×5stories
+64ft-50ft

Overall

26253

Females

11258

F40-44

11258

20M→21M

20.0 - 21.0 mi

Top 97%
×8stories
+106ft-24ft

Overall

25923

Females

11066

F40-44

11066

21M→35K

21.0 - 21.8 mi

Top 98%
×7stories
+17ft-86ft

Overall

26117

Females

11191

F40-44

11191

35K→23M

21.8 - 23.0 mi

Top 97%
×5stories
+23ft-63ft

Overall

25929

Females

11110

F40-44

11110

23M→24M

23.0 - 24.0 mi

Top 97%
×6stories
+12ft-82ft

Overall

25717

Females

11037

F40-44

11037

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

25589

Females

10971

F40-44

10971

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

25536

Females

10950

F40-44

10950

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2stories
+22ft-21ft

Overall

25650

Females

11006

F40-44

11006

Passing Analysis

Category:
Athletes Passed
125
Passed By
431
Net Change
-306
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26183
5K → 10K8187-179#26183#26362
10K → 15K1092-82#26362#26444
15K → 20K780-73#26444#26517
20K → Half016-16#26517#26533
Half → 25K718-11#26533#26544
25K → 30K1122-11#26544#26555
30K → 20M76+1#26555#26554
20M → 21M61+5#26554#26549
21M → 35K74+3#26549#26546
35K → 23M143+11#26546#26535
23M → 24M100+10#26535#26525
24M → 40K91+8#26525#26517
40K → 25.2M90+9#26517#26508
25.2M → Finish201+19#26508#26489
TOTALS125431-306
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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