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BOSTON MARATHON 2023

Alicia Dauw

Bib: 19199•F

TN

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
26:48
Rank: #18395
Start → 5K
26:48 | 8:38/mi
10K· 6.21 mi
53:24
Rank: #18502 (-107)
5K → 10K
26:36 | 8:34/mi
15K· 9.32 mi
1:19:47
Rank: #18230 (+272)
10K → 15K
26:23 | 8:30/mi
20K· 12.43 mi
1:46:19
Rank: #17927 (+303)
15K → 20K
26:32 | 8:32/mi
Half· 13.11 mi
1:52:25
Rank: #18053 (-126)
20K → Half
6:06 | 8:56/mi
25K· 15.53 mi
2:13:11
Rank: #17777 (+276)
Half → 25K
20:46 | 8:34/mi
30K· 18.64 mi
2:40:38
Rank: #17475 (+302)
25K → 30K
27:27 | 8:50/mi
20M
2:52:36
Rank: #17297 (+178)
30K → 20M
11:58 | 8:48/mi
21M
3:01:38
Rank: #17088 (+209)
20M → 21M
9:02 | 9:02/mi
35K· 21.75 mi
3:07:59
Rank: #17019 (+69)
21M → 35K
6:21 | 8:29/mi
23M
3:18:51
Rank: #16847 (+172)
35K → 23M
10:52 | 8:41/mi
24M
3:27:27
Rank: #16771 (+76)
23M → 24M
8:36 | 8:36/mi
40K· 24.85 mi
3:34:47
Rank: #16655 (+116)
24M → 40K
7:20 | 8:35/mi
25.2M
3:37:55
Rank: #16583 (+72)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:46:04
Rank: #16395 (+188)
25.2M → Finish
8:09 | 8:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:25
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time1:53:39
Pace8:40 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:2626:488:3826:48
8:38
-
10K
6.21 mi11:45:0253:248:3626:36
8:34
-0:04
15K
9.32 mi12:11:251:19:478:3426:23
8:30
-0:04
20K
12.43 mi12:37:571:46:198:3326:32
8:32
+0:02
Half
13.11 mi12:44:031:52:258:356:06
8:56
+0:24
25K
15.53 mi13:04:492:13:118:3420:46
8:34
-0:22
30K
18.64 mi13:32:162:40:388:3727:27
8:50
+0:16
20M
20.00 mi13:44:142:52:368:3811:58
8:48
-0:02
21M
21.00 mi13:53:163:01:388:399:02
9:02
+0:14
35K
21.75 mi13:59:373:07:598:396:21
8:29
-0:33
23M
23.00 mi14:10:293:18:518:3910:52
8:41
+0:12
24M
24.00 mi14:19:053:27:278:398:36
8:36
-0:05
40K
24.85 mi14:26:253:34:478:387:20
8:35
-0:01
25.2M
25.20 mi14:29:333:37:558:393:08
9:05
+0:30
Finish
26.22 mi14:37:423:46:048:388:09
8:00
-1:05

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

8:00 /mi

Average Pace

8:38 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:21

80% of race

Time at Steady Pace

45:43

20% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:37 /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 mi11:18:2626:488:3826:48
8:38
#18395
10K
6.21 mi11:45:0253:248:3626:36
8:34
#18502
15K
9.32 mi12:11:251:19:478:3426:23
8:30
#18230
20K
12.43 mi12:37:571:46:198:3326:32
8:32
#17927
Half
13.11 mi12:44:031:52:258:356:06
8:56
#18053
25K
15.53 mi13:04:492:13:118:3420:46
8:34
#17777
30K
18.64 mi13:32:162:40:388:3727:27
8:50
#17475
20M
20.00 mi13:44:142:52:368:3811:58
8:48
#17297
21M
21.00 mi13:53:163:01:388:399:02
9:02
#17088
35K
21.75 mi13:59:373:07:598:396:21
8:29
#17019
23M
23.00 mi14:10:293:18:518:3910:52
8:41
#16847
24M
24.00 mi14:19:053:27:278:398:36
8:36
#16771
40K
24.85 mi14:26:253:34:478:387:20
8:35
#16655
25.2M
25.20 mi14:29:333:37:558:393:08
9:05
#16583
Finish
26.22 mi14:37:423:46:048:388:09
8:00
#16395
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi183956807680717760(Top 67%)6366(Top 56%)6366(Top 130%)
10K6.21 mi3.10 mi18502-1076827-206827-2018640(Top 70%)6856(Top 60%)6856(Top 140%)
15K9.32 mi3.11 mi18230+2726656+1716656+17117760(Top 67%)6366(Top 56%)6366(Top 130%)
20K12.43 mi3.11 mi17927+3036481+1756481+17517122(Top 64%)6001(Top 53%)6001(Top 123%)
Half13.11 mi0.68 mi18053-1266540-596540-5920185(Top 76%)7756(Top 68%)7756(Top 159%)
25K15.53 mi2.42 mi17777+2766402+1386402+13816599(Top 62%)5773(Top 51%)5773(Top 118%)
30K18.64 mi3.11 mi17475+3026239+1636239+16316289(Top 61%)5665(Top 50%)5665(Top 116%)
20M20.00 mi1.36 mi17297+1786153+866153+8615486(Top 58%)5272(Top 46%)5272(Top 108%)
21M21.00 mi1.00 mi17088+2096041+1126041+11213640(Top 51%)4296(Top 38%)4296(Top 88%)
35K21.75 mi0.75 mi17019+696011+306011+3015293(Top 57%)5297(Top 46%)5297(Top 108%)
23M23.00 mi1.25 mi16847+1725929+825929+8214288(Top 54%)4788(Top 42%)4788(Top 98%)
24M24.00 mi1.00 mi16771+765906+235906+2315086(Top 57%)5281(Top 46%)5281(Top 108%)
40K24.85 mi0.85 mi16655+1165855+515855+5113859(Top 52%)4672(Top 41%)4672(Top 96%)
25.2M25.20 mi0.35 mi16583+725819+365819+3613109(Top 49%)4307(Top 38%)4307(Top 88%)
Finish26.22 mi1.02 mi16395+1885716+1035716+10312174(Top 46%)3803(Top 33%)3803(Top 78%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21stories
+97ft-345ft

Overall

17760

Females

6366

F18-39

6366

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

18640

Females

6856

F18-39

6856

10K→15K

6.2 - 9.3 mi

Top 67%
×3stories
+67ft-78ft

Overall

17760

Females

6366

F18-39

6366

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

17122

Females

6001

F18-39

6001

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

20185

Females

7756

F18-39

7756

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

16599

Females

5773

F18-39

5773

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

16289

Females

5665

F18-39

5665

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

15486

Females

5272

F18-39

5272

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

13640

Females

4296

F18-39

4296

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

15293

Females

5297

F18-39

5297

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

14288

Females

4788

F18-39

4788

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

15086

Females

5281

F18-39

5281

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13859

Females

4672

F18-39

4672

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13109

Females

4307

F18-39

4307

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

12174

Females

3803

F18-39

3803

Passing Analysis

Category:
Athletes Passed
2794
Passed By
794
Net Change
+2000
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18395
5K → 10K276383-107#18395#18502
10K → 15K34169+272#18502#18230
15K → 20K35047+303#18230#17927
20K → Half9135-126#17927#18053
Half → 25K29721+276#18053#17777
25K → 30K34644+302#17777#17475
30K → 20M18911+178#17475#17297
20M → 21M2189+209#17297#17088
21M → 35K8314+69#17088#17019
35K → 23M18210+172#17019#16847
23M → 24M10731+76#16847#16771
24M → 40K12711+116#16771#16655
40K → 25.2M775+72#16655#16583
25.2M → Finish1924+188#16583#16395
TOTALS2794794+2000
📊

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