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BOSTON MARATHON 2023

Florence Lewine

Bib: 10443•F

DC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 22%
Gender (Female)
#0 / 11423
Top 5%
Division (F18-39)
#0 / 4884
Top 10%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:19
Rank: #7399
Start → 5K
22:19 | 7:11/mi
10K· 6.21 mi
43:53
Rank: #6873 (+526)
5K → 10K
21:34 | 6:56/mi
15K· 9.32 mi
1:05:28
Rank: #6647 (+226)
10K → 15K
21:35 | 6:57/mi
20K· 12.43 mi
1:27:12
Rank: #6445 (+202)
15K → 20K
21:44 | 7:00/mi
Half· 13.11 mi
1:31:53
Rank: #6412 (+33)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:49:01
Rank: #6336 (+76)
Half → 25K
17:08 | 7:04/mi
30K· 18.64 mi
2:11:39
Rank: #6200 (+136)
25K → 30K
22:38 | 7:17/mi
20M
2:21:35
Rank: #6113 (+87)
30K → 20M
9:56 | 7:19/mi
21M
2:29:15
Rank: #6044 (+69)
20M → 21M
7:40 | 7:40/mi
35K· 21.75 mi
2:34:40
Rank: #6032 (+12)
21M → 35K
5:25 | 7:14/mi
23M
2:43:57
Rank: #5977 (+55)
35K → 23M
9:17 | 7:25/mi
24M
2:51:15
Rank: #5937 (+40)
23M → 24M
7:18 | 7:18/mi
40K· 24.85 mi
2:57:34
Rank: #5893 (+44)
24M → 40K
6:19 | 7:23/mi
25.2M
3:00:18
Rank: #5880 (+13)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:07:33
Rank: #5837 (+43)
25.2M → Finish
7:15 | 7:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:53
Pace7:01 /mi
2nd Half
Distance13.11 mi
Time1:35:40
Pace7:18 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:2322:197:1122:19
7:11
-
10K
6.21 mi11:09:5743:537:0421:34
6:56
-0:15
15K
9.32 mi11:31:321:05:287:0121:35
6:57
+0:01
20K
12.43 mi11:53:161:27:127:0121:44
7:00
+0:03
Half
13.11 mi11:57:571:31:537:014:41
6:52
-0:08
25K
15.53 mi12:15:051:49:017:0117:08
7:04
+0:12
30K
18.64 mi12:37:432:11:397:0422:38
7:17
+0:13
20M
20.00 mi12:47:392:21:357:059:56
7:19
+0:02
21M
21.00 mi12:55:192:29:157:067:40
7:40
+0:21
35K
21.75 mi13:00:442:34:407:075:25
7:14
-0:26
23M
23.00 mi13:10:012:43:577:089:17
7:25
+0:11
24M
24.00 mi13:17:192:51:157:087:18
7:18
-0:07
40K
24.85 mi13:23:382:57:347:096:19
7:23
+0:05
25.2M
25.20 mi13:26:223:00:187:092:44
7:56
+0:33
Finish
26.22 mi13:33:373:07:337:107:15
7:07
-0:49

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

6:52 /mi

Average Pace

7:10 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:57:09

94% of race

Time at Steady Pace

10:24

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:09 /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 mi10:48:2322:197:1122:19
7:11
#7399
10K
6.21 mi11:09:5743:537:0421:34
6:56
#6873
15K
9.32 mi11:31:321:05:287:0121:35
6:57
#6647
20K
12.43 mi11:53:161:27:127:0121:44
7:00
#6445
Half
13.11 mi11:57:571:31:537:014:41
6:52
#6412
25K
15.53 mi12:15:051:49:017:0117:08
7:04
#6336
30K
18.64 mi12:37:432:11:397:0422:38
7:17
#6200
20M
20.00 mi12:47:392:21:357:059:56
7:19
#6113
21M
21.00 mi12:55:192:29:157:067:40
7:40
#6044
35K
21.75 mi13:00:442:34:407:075:25
7:14
#6032
23M
23.00 mi13:10:012:43:577:089:17
7:25
#5977
24M
24.00 mi13:17:192:51:157:087:18
7:18
#5937
40K
24.85 mi13:23:382:57:347:096:19
7:23
#5893
25.2M
25.20 mi13:26:223:00:187:092:44
7:56
#5880
Finish
26.22 mi13:33:373:07:337:107:15
7:07
#5837
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi73998168166254(Top 23%)585(Top 5%)585(Top 12%)
10K6.21 mi3.10 mi6873+526695+121695+1216444(Top 24%)623(Top 5%)623(Top 13%)
15K9.32 mi3.11 mi6647+226649+46649+466254(Top 23%)585(Top 5%)585(Top 12%)
20K12.43 mi3.11 mi6445+202618+31618+315966(Top 22%)512(Top 4%)512(Top 10%)
Half13.11 mi0.68 mi6412+33611+7611+75843(Top 22%)481(Top 4%)481(Top 10%)
25K15.53 mi2.42 mi6336+76599+12599+125957(Top 22%)541(Top 5%)541(Top 11%)
30K18.64 mi3.11 mi6200+136580+19580+195949(Top 22%)606(Top 5%)606(Top 12%)
20M20.00 mi1.36 mi6113+87570+10570+105708(Top 21%)624(Top 5%)624(Top 13%)
21M21.00 mi1.00 mi6044+69562+8562+85470(Top 21%)652(Top 6%)652(Top 13%)
35K21.75 mi0.75 mi6032+12571-9571-96795(Top 26%)1013(Top 9%)1013(Top 21%)
23M23.00 mi1.25 mi5977+55570+1570+15965(Top 22%)794(Top 7%)794(Top 16%)
24M24.00 mi1.00 mi5937+40571-1571-16399(Top 24%)1038(Top 9%)1038(Top 21%)
40K24.85 mi0.85 mi5893+44573-2573-26022(Top 23%)980(Top 9%)980(Top 20%)
25.2M25.20 mi0.35 mi5880+13574-1574-16132(Top 23%)1082(Top 9%)1082(Top 22%)
Finish26.22 mi1.02 mi5837+43575-1575-15916(Top 22%)1035(Top 9%)1035(Top 21%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6254

Females

585

F18-39

585

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6444

Females

623

F18-39

623

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6254

Females

585

F18-39

585

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

5966

Females

512

F18-39

512

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

5843

Females

481

F18-39

481

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

5957

Females

541

F18-39

541

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

5949

Females

606

F18-39

606

30K→20M

18.6 - 20.0 mi

Top 21%
×5stories
+64ft-50ft

Overall

5708

Females

624

F18-39

624

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

5470

Females

652

F18-39

652

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

6795

Females

1013

F18-39

1013

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

5965

Females

794

F18-39

794

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6399

Females

1038

F18-39

1038

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6022

Females

980

F18-39

980

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6132

Females

1082

F18-39

1082

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

5916

Females

1035

F18-39

1035

Passing Analysis

Category:
Athletes Passed
1960
Passed By
398
Net Change
+1562
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7399
5K → 10K56438+526#7399#6873
10K → 15K26034+226#6873#6647
15K → 20K22624+202#6647#6445
20K → Half385+33#6445#6412
Half → 25K10933+76#6412#6336
25K → 30K19256+136#6336#6200
30K → 20M10013+87#6200#6113
20M → 21M9122+69#6113#6044
21M → 35K4634+12#6044#6032
35K → 23M9035+55#6032#5977
23M → 24M7030+40#5977#5937
24M → 40K6925+44#5937#5893
40K → 25.2M2714+13#5893#5880
25.2M → Finish7835+43#5880#5837
TOTALS1960398+1562
📊

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