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BOSTON MARATHON 2023

Caroline Lee

Bib: 29656•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
32:04
Rank: #24273
Start → 5K
32:04 | 10:19/mi
10K· 6.21 mi
1:03:19
Rank: #24035 (+238)
5K → 10K
31:15 | 10:04/mi
15K· 9.32 mi
1:34:06
Rank: #23796 (+239)
10K → 15K
30:47 | 9:54/mi
20K· 12.43 mi
2:05:23
Rank: #23616 (+180)
15K → 20K
31:17 | 10:04/mi
Half· 13.11 mi
2:12:09
Rank: #23597 (+19)
20K → Half
6:46 | 9:55/mi
25K· 15.53 mi
2:36:07
Rank: #23318 (+279)
Half → 25K
23:58 | 9:53/mi
30K· 18.64 mi
3:07:44
Rank: #22967 (+351)
25K → 30K
31:37 | 10:11/mi
20M
3:21:28
Rank: #22781 (+186)
30K → 20M
13:44 | 10:06/mi
21M
3:31:39
Rank: #22613 (+168)
20M → 21M
10:11 | 10:11/mi
35K· 21.75 mi
3:39:08
Rank: #22549 (+64)
21M → 35K
7:29 | 10:00/mi
23M
3:51:36
Rank: #22415 (+134)
35K → 23M
12:28 | 9:57/mi
24M
4:01:26
Rank: #22345 (+70)
23M → 24M
9:50 | 9:50/mi
40K· 24.85 mi
4:09:35
Rank: #22217 (+128)
24M → 40K
8:09 | 9:32/mi
25.2M
4:13:04
Rank: #22149 (+68)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
4:22:17
Rank: #22045 (+104)
25.2M → Finish
9:13 | 9:03/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:12:09
Pace10:05 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:10:08
Pace9:56 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:3132:0410:1932:04
10:19
-
10K
6.21 mi12:24:461:03:1910:1131:15
10:04
-0:15
15K
9.32 mi12:55:331:34:0610:0630:47
9:54
-0:10
20K
12.43 mi13:26:502:05:2310:0531:17
10:04
+0:10
Half
13.11 mi13:33:362:12:0910:056:46
9:55
-0:09
25K
15.53 mi13:57:342:36:0710:0323:58
9:53
-0:02
30K
18.64 mi14:29:113:07:4410:0431:37
10:11
+0:18
20M
20.00 mi14:42:553:21:2810:0413:44
10:06
-0:05
21M
21.00 mi14:53:063:31:3910:0510:11
10:11
+0:05
35K
21.75 mi15:00:353:39:0810:057:29
10:00
-0:11
23M
23.00 mi15:13:033:51:3610:0412:28
9:57
-0:03
24M
24.00 mi15:22:534:01:2610:049:50
9:50
-0:07
40K
24.85 mi15:31:024:09:3510:028:09
9:32
-0:18
25.2M
25.20 mi15:34:314:13:0410:033:29
10:06
+0:34
Finish
26.22 mi15:43:444:22:1710:019:13
9:03
-1:03

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

9:03 /mi

Average Pace

10:01 /mi

Slowest Pace

10:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:11

39% of race

Time at Steady Pace

2:41:06

61% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:00 /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 mi11:53:3132:0410:1932:04
10:19
#24273
10K
6.21 mi12:24:461:03:1910:1131:15
10:04
#24035
15K
9.32 mi12:55:331:34:0610:0630:47
9:54
#23796
20K
12.43 mi13:26:502:05:2310:0531:17
10:04
#23616
Half
13.11 mi13:33:362:12:0910:056:46
9:55
#23597
25K
15.53 mi13:57:342:36:0710:0323:58
9:53
#23318
30K
18.64 mi14:29:113:07:4410:0431:37
10:11
#22967
20M
20.00 mi14:42:553:21:2810:0413:44
10:06
#22781
21M
21.00 mi14:53:063:31:3910:0510:11
10:11
#22613
35K
21.75 mi15:00:353:39:0810:057:29
10:00
#22549
23M
23.00 mi15:13:033:51:3610:0412:28
9:57
#22415
24M
24.00 mi15:22:534:01:2610:049:50
9:50
#22345
40K
24.85 mi15:31:024:09:3510:028:09
9:32
#22217
25.2M
25.20 mi15:34:314:13:0410:033:29
10:06
#22149
Finish
26.22 mi15:43:444:22:1710:019:13
9:03
#22045
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24273100221002223328(Top 88%)9505(Top 83%)9505(Top 195%)
10K6.21 mi3.10 mi24035+2389913+1099913+10923815(Top 89%)9791(Top 86%)9791(Top 200%)
15K9.32 mi3.11 mi23796+2399779+1349779+13423328(Top 88%)9505(Top 83%)9505(Top 195%)
20K12.43 mi3.11 mi23616+1809675+1049675+10423058(Top 87%)9377(Top 82%)9377(Top 192%)
Half13.11 mi0.68 mi23597+199661+149661+1423120(Top 87%)9415(Top 82%)9415(Top 193%)
25K15.53 mi2.42 mi23318+2799521+1409521+14021961(Top 82%)8813(Top 77%)8813(Top 180%)
30K18.64 mi3.11 mi22967+3519365+1569365+15621485(Top 81%)8627(Top 76%)8627(Top 177%)
20M20.00 mi1.36 mi22781+1869277+889277+8820768(Top 78%)8288(Top 73%)8288(Top 170%)
21M21.00 mi1.00 mi22613+1689206+719206+7118681(Top 70%)7160(Top 63%)7160(Top 147%)
35K21.75 mi0.75 mi22549+649169+379169+3721297(Top 80%)8654(Top 76%)8654(Top 177%)
23M23.00 mi1.25 mi22415+1349103+669103+6619885(Top 75%)7901(Top 69%)7901(Top 162%)
24M24.00 mi1.00 mi22345+709072+319072+3120346(Top 76%)8182(Top 72%)8182(Top 168%)
40K24.85 mi0.85 mi22217+1289008+649008+6418476(Top 69%)7208(Top 63%)7208(Top 148%)
25.2M25.20 mi0.35 mi22149+688975+338975+3317863(Top 67%)6913(Top 61%)6913(Top 142%)
Finish26.22 mi1.02 mi22045+1048927+488927+4818233(Top 68%)7040(Top 62%)7040(Top 144%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

23328

Females

9505

F18-39

9505

5K→10K

3.1 - 6.2 mi

Top 89%
×5stories
+79ft-138ft

Overall

23815

Females

9791

F18-39

9791

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

23328

Females

9505

F18-39

9505

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

23058

Females

9377

F18-39

9377

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

23120

Females

9415

F18-39

9415

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

21961

Females

8813

F18-39

8813

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

21485

Females

8627

F18-39

8627

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

20768

Females

8288

F18-39

8288

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

18681

Females

7160

F18-39

7160

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

21297

Females

8654

F18-39

8654

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

19885

Females

7901

F18-39

7901

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

20346

Females

8182

F18-39

8182

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

18476

Females

7208

F18-39

7208

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17863

Females

6913

F18-39

6913

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

18233

Females

7040

F18-39

7040

Passing Analysis

Category:
Athletes Passed
2462
Passed By
234
Net Change
+2228
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24273
5K → 10K345107+238#24273#24035
10K → 15K26425+239#24035#23796
15K → 20K22646+180#23796#23616
20K → Half3415+19#23616#23597
Half → 25K2834+279#23597#23318
25K → 30K36110+351#23318#22967
30K → 20M1893+186#22967#22781
20M → 21M1680+168#22781#22613
21M → 35K7612+64#22613#22549
35K → 23M1362+134#22549#22415
23M → 24M8010+70#22415#22345
24M → 40K1280+128#22345#22217
40K → 25.2M680+68#22217#22149
25.2M → Finish1040+104#22149#22045
TOTALS2462234+2228
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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