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BOSTON MARATHON 2023

Sydney Lee

Bib: 24802•F

CA

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
27:21
Rank: #19473
Start → 5K
27:21 | 8:48/mi
10K· 6.21 mi
53:53
Rank: #18955 (+518)
5K → 10K
26:32 | 8:32/mi
15K· 9.32 mi
1:20:37
Rank: #18748 (+207)
10K → 15K
26:44 | 8:36/mi
20K· 12.43 mi
1:47:20
Rank: #18428 (+320)
15K → 20K
26:43 | 8:36/mi
Half· 13.11 mi
1:53:09
Rank: #18386 (+42)
20K → Half
5:49 | 8:32/mi
25K· 15.53 mi
2:14:17
Rank: #18238 (+148)
Half → 25K
21:08 | 8:43/mi
30K· 18.64 mi
2:41:58
Rank: #17905 (+333)
25K → 30K
27:41 | 8:55/mi
20M
2:54:03
Rank: #17739 (+166)
30K → 20M
12:05 | 8:54/mi
21M
3:03:17
Rank: #17562 (+177)
20M → 21M
9:14 | 9:14/mi
35K· 21.75 mi
3:09:47
Rank: #17503 (+59)
21M → 35K
6:30 | 8:41/mi
23M
3:20:57
Rank: #17390 (+113)
35K → 23M
11:10 | 8:55/mi
24M
3:29:52
Rank: #17366 (+24)
23M → 24M
8:55 | 8:55/mi
40K· 24.85 mi
3:37:32
Rank: #17311 (+55)
24M → 40K
7:40 | 8:58/mi
25.2M
3:40:44
Rank: #17258 (+53)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:48:59
Rank: #17104 (+154)
25.2M → Finish
8:15 | 8:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:09
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time1:55:50
Pace8:50 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:1027:218:4827:21
8:48
-
10K
6.21 mi12:09:4253:538:4026:32
8:32
-0:16
15K
9.32 mi12:36:261:20:378:3926:44
8:36
+0:04
20K
12.43 mi13:03:091:47:208:3826:43
8:36
0:00
Half
13.11 mi13:08:581:53:098:385:49
8:32
-0:04
25K
15.53 mi13:30:062:14:178:3921:08
8:43
+0:11
30K
18.64 mi13:57:472:41:588:4127:41
8:55
+0:12
20M
20.00 mi14:09:522:54:038:4212:05
8:54
-0:01
21M
21.00 mi14:19:063:03:178:449:14
9:14
+0:20
35K
21.75 mi14:25:363:09:478:446:30
8:41
-0:33
23M
23.00 mi14:36:463:20:578:4411:10
8:55
+0:14
24M
24.00 mi14:45:413:29:528:458:55
8:55
0:00
40K
24.85 mi14:53:213:37:328:457:40
8:58
+0:03
25.2M
25.20 mi14:56:333:40:448:463:12
9:17
+0:19
Finish
26.22 mi15:04:483:48:598:448:15
8:06
-1:11

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

8:06 /mi

Average Pace

8:44 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:07

70% of race

Time at Steady Pace

1:07:52

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:44 /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 mi11:43:1027:218:4827:21
8:48
#19473
10K
6.21 mi12:09:4253:538:4026:32
8:32
#18955
15K
9.32 mi12:36:261:20:378:3926:44
8:36
#18748
20K
12.43 mi13:03:091:47:208:3826:43
8:36
#18428
Half
13.11 mi13:08:581:53:098:385:49
8:32
#18386
25K
15.53 mi13:30:062:14:178:3921:08
8:43
#18238
30K
18.64 mi13:57:472:41:588:4127:41
8:55
#17905
20M
20.00 mi14:09:522:54:038:4212:05
8:54
#17739
21M
21.00 mi14:19:063:03:178:449:14
9:14
#17562
35K
21.75 mi14:25:363:09:478:446:30
8:41
#17503
23M
23.00 mi14:36:463:20:578:4411:10
8:55
#17390
24M
24.00 mi14:45:413:29:528:458:55
8:55
#17366
40K
24.85 mi14:53:213:37:328:457:40
8:58
#17311
25.2M
25.20 mi14:56:333:40:448:463:12
9:17
#17258
Finish
26.22 mi15:04:483:48:598:448:15
8:06
#17104
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi194737492749218480(Top 69%)6783(Top 59%)6783(Top 139%)
10K6.21 mi3.10 mi18955+5187119+3737119+37318495(Top 69%)6761(Top 59%)6761(Top 138%)
15K9.32 mi3.11 mi18748+2076974+1456974+14518480(Top 69%)6783(Top 59%)6783(Top 139%)
20K12.43 mi3.11 mi18428+3206765+2096765+20917498(Top 66%)6224(Top 54%)6224(Top 127%)
Half13.11 mi0.68 mi18386+426735+306735+3017876(Top 67%)6405(Top 56%)6405(Top 131%)
25K15.53 mi2.42 mi18238+1486670+656670+6517473(Top 66%)6266(Top 55%)6266(Top 128%)
30K18.64 mi3.11 mi17905+3336508+1626508+16216717(Top 63%)5902(Top 52%)5902(Top 121%)
20M20.00 mi1.36 mi17739+1666421+876421+8715992(Top 60%)5574(Top 49%)5574(Top 114%)
21M21.00 mi1.00 mi17562+1776335+866335+8614676(Top 55%)4869(Top 43%)4869(Top 100%)
35K21.75 mi0.75 mi17503+596309+266309+2616375(Top 62%)5924(Top 52%)5924(Top 121%)
23M23.00 mi1.25 mi17390+1136253+566253+5615654(Top 59%)5552(Top 49%)5552(Top 114%)
24M24.00 mi1.00 mi17366+246248+56248+516868(Top 63%)6283(Top 55%)6283(Top 129%)
40K24.85 mi0.85 mi17311+556235+136235+1315996(Top 60%)5854(Top 51%)5854(Top 120%)
25.2M25.20 mi0.35 mi17258+536214+216214+2114183(Top 53%)4867(Top 43%)4867(Top 100%)
Finish26.22 mi1.02 mi17104+1546131+836131+8312802(Top 48%)4126(Top 36%)4126(Top 84%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

18480

Females

6783

F18-39

6783

5K→10K

3.1 - 6.2 mi

Top 69%
×5stories
+79ft-138ft

Overall

18495

Females

6761

F18-39

6761

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

18480

Females

6783

F18-39

6783

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

17498

Females

6224

F18-39

6224

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

17876

Females

6405

F18-39

6405

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

17473

Females

6266

F18-39

6266

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

16717

Females

5902

F18-39

5902

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

15992

Females

5574

F18-39

5574

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

14676

Females

4869

F18-39

4869

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

16375

Females

5924

F18-39

5924

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

15654

Females

5552

F18-39

5552

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

16868

Females

6283

F18-39

6283

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

15996

Females

5854

F18-39

5854

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14183

Females

4867

F18-39

4867

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

12802

Females

4126

F18-39

4126

Passing Analysis

Category:
Athletes Passed
2968
Passed By
599
Net Change
+2369
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19473
5K → 10K679161+518#19473#18955
10K → 15K30699+207#18955#18748
15K → 20K35939+320#18748#18428
20K → Half5917+42#18428#18386
Half → 25K20254+148#18386#18238
25K → 30K37643+333#18238#17905
30K → 20M18519+166#17905#17739
20M → 21M19518+177#17739#17562
21M → 35K7819+59#17562#17503
35K → 23M13926+113#17503#17390
23M → 24M7349+24#17390#17366
24M → 40K9136+55#17366#17311
40K → 25.2M585+53#17311#17258
25.2M → Finish16814+154#17258#17104
TOTALS2968599+2369
📊

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