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BOSTON MARATHON 2023

Jaeyeon Lee

Bib: 29495•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 42%
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
26:11
Rank: #17071
Start → 5K
26:11 | 8:26/mi
10K· 6.21 mi
51:11
Rank: #16096 (+975)
5K → 10K
25:00 | 8:03/mi
15K· 9.32 mi
1:16:21
Rank: #15759 (+337)
10K → 15K
25:10 | 8:06/mi
20K· 12.43 mi
1:41:42
Rank: #15466 (+293)
15K → 20K
25:21 | 8:10/mi
Half· 13.11 mi
1:47:05
Rank: #15372 (+94)
20K → Half
5:23 | 7:53/mi
25K· 15.53 mi
2:07:35
Rank: #15442 (-70)
Half → 25K
20:30 | 8:27/mi
30K· 18.64 mi
2:34:23
Rank: #15351 (+91)
25K → 30K
26:48 | 8:38/mi
20M
2:45:56
Rank: #15217 (+134)
30K → 20M
11:33 | 8:30/mi
21M
2:55:02
Rank: #15115 (+102)
20M → 21M
9:06 | 9:06/mi
35K· 21.75 mi
3:01:20
Rank: #15098 (+17)
21M → 35K
6:18 | 8:25/mi
23M
3:12:24
Rank: #15070 (+28)
35K → 23M
11:04 | 8:50/mi
24M
3:21:05
Rank: #15075 (-5)
23M → 24M
8:41 | 8:41/mi
40K· 24.85 mi
3:28:36
Rank: #15064 (+11)
24M → 40K
7:31 | 8:47/mi
25.2M
3:31:41
Rank: #15007 (+57)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:39:46
Rank: #14882 (+125)
25.2M → Finish
8:05 | 7:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:05
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time1:52:41
Pace8:36 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:1726:118:2626:11
8:26
-
10K
6.21 mi12:12:1751:118:1425:00
8:03
-0:23
15K
9.32 mi12:37:271:16:218:1125:10
8:06
+0:03
20K
12.43 mi13:02:481:41:428:1125:21
8:10
+0:04
Half
13.11 mi13:08:111:47:058:105:23
7:53
-0:17
25K
15.53 mi13:28:412:07:358:1320:30
8:27
+0:34
30K
18.64 mi13:55:292:34:238:1726:48
8:38
+0:11
20M
20.00 mi14:07:022:45:568:1811:33
8:30
-0:08
21M
21.00 mi14:16:082:55:028:209:06
9:06
+0:36
35K
21.75 mi14:22:263:01:208:206:18
8:25
-0:41
23M
23.00 mi14:33:303:12:248:2211:04
8:50
+0:25
24M
24.00 mi14:42:113:21:058:238:41
8:41
-0:09
40K
24.85 mi14:49:423:28:368:247:31
8:47
+0:06
25.2M
25.20 mi14:52:473:31:418:243:05
8:56
+0:09
Finish
26.22 mi15:00:523:39:468:238:05
7:56
-1:00

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

7:53 /mi

Average Pace

8:23 /mi

Slowest Pace

9:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:19

82% of race

Time at Steady Pace

39:27

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:23 /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 mi11:47:1726:118:2626:11
8:26
#17071
10K
6.21 mi12:12:1751:118:1425:00
8:03
#16096
15K
9.32 mi12:37:271:16:218:1125:10
8:06
#15759
20K
12.43 mi13:02:481:41:428:1125:21
8:10
#15466
Half
13.11 mi13:08:111:47:058:105:23
7:53
#15372
25K
15.53 mi13:28:412:07:358:1320:30
8:27
#15442
30K
18.64 mi13:55:292:34:238:1726:48
8:38
#15351
20M
20.00 mi14:07:022:45:568:1811:33
8:30
#15217
21M
21.00 mi14:16:082:55:028:209:06
9:06
#15115
35K
21.75 mi14:22:263:01:208:206:18
8:25
#15098
23M
23.00 mi14:33:303:12:248:2211:04
8:50
#15070
24M
24.00 mi14:42:113:21:058:238:41
8:41
#15075
40K
24.85 mi14:49:423:28:368:247:31
8:47
#15064
25.2M
25.20 mi14:52:473:31:418:243:05
8:56
#15007
Finish
26.22 mi15:00:523:39:468:238:05
7:56
#14882
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi170715974597415183(Top 57%)4783(Top 42%)4783(Top 98%)
10K6.21 mi3.10 mi16096+9755337+6375337+63715159(Top 57%)4767(Top 42%)4767(Top 98%)
15K9.32 mi3.11 mi15759+3375130+2075130+20715183(Top 57%)4783(Top 42%)4783(Top 98%)
20K12.43 mi3.11 mi15466+2934975+1554975+15514682(Top 55%)4515(Top 40%)4515(Top 92%)
Half13.11 mi0.68 mi15372+944920+554920+5513591(Top 51%)3867(Top 34%)3867(Top 79%)
25K15.53 mi2.42 mi15442-704992-724992-7215933(Top 60%)5398(Top 47%)5398(Top 111%)
30K18.64 mi3.11 mi15351+914979+134979+1315075(Top 57%)4978(Top 44%)4978(Top 102%)
20M20.00 mi1.36 mi15217+1344921+584921+5813655(Top 51%)4215(Top 37%)4215(Top 86%)
21M21.00 mi1.00 mi15115+1024873+484873+4814011(Top 53%)4494(Top 39%)4494(Top 92%)
35K21.75 mi0.75 mi15098+174877-44877-414873(Top 56%)5028(Top 44%)5028(Top 103%)
23M23.00 mi1.25 mi15070+284886-94886-915209(Top 57%)5290(Top 46%)5290(Top 108%)
24M24.00 mi1.00 mi15075-54899-134899-1315578(Top 59%)5568(Top 49%)5568(Top 114%)
40K24.85 mi0.85 mi15064+114914-154914-1515058(Top 57%)5327(Top 47%)5327(Top 109%)
25.2M25.20 mi0.35 mi15007+574894+204894+2012266(Top 46%)3879(Top 34%)3879(Top 79%)
Finish26.22 mi1.02 mi14882+1254837+574837+5711669(Top 44%)3540(Top 31%)3540(Top 72%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

15183

Females

4783

F18-39

4783

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

15159

Females

4767

F18-39

4767

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

15183

Females

4783

F18-39

4783

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

14682

Females

4515

F18-39

4515

20K→Half

12.4 - 13.1 mi

Top 51%
×2stories
+19ft-37ft

Overall

13591

Females

3867

F18-39

3867

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

15933

Females

5398

F18-39

5398

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

15075

Females

4978

F18-39

4978

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

13655

Females

4215

F18-39

4215

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14011

Females

4494

F18-39

4494

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

14873

Females

5028

F18-39

5028

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

15209

Females

5290

F18-39

5290

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

15578

Females

5568

F18-39

5568

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15058

Females

5327

F18-39

5327

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12266

Females

3879

F18-39

3879

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11669

Females

3540

F18-39

3540

Passing Analysis

Category:
Athletes Passed
2998
Passed By
809
Net Change
+2189
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17071
5K → 10K103459+975#17071#16096
10K → 15K41174+337#16096#15759
15K → 20K34350+293#15759#15466
20K → Half995+94#15466#15372
Half → 25K112182-70#15372#15442
25K → 30K231140+91#15442#15351
30K → 20M15824+134#15351#15217
20M → 21M13735+102#15217#15115
21M → 35K5134+17#15115#15098
35K → 23M9163+28#15098#15070
23M → 24M5661-5#15070#15075
24M → 40K7261+11#15075#15064
40K → 25.2M658+57#15064#15007
25.2M → Finish13813+125#15007#14882
TOTALS2998809+2189
📊

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