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BOSTON MARATHON 2023

Joann Lee

Bib: 16131•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 50%
Gender (Female)
#0 / 11423
Top 33%
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
25:04
Rank: #14483
Start → 5K
25:04 | 8:04/mi
10K· 6.21 mi
49:58
Rank: #14681 (-198)
5K → 10K
24:54 | 8:01/mi
15K· 9.32 mi
1:14:45
Rank: #14496 (+185)
10K → 15K
24:47 | 7:59/mi
20K· 12.43 mi
1:39:39
Rank: #14243 (+253)
15K → 20K
24:54 | 8:01/mi
Half· 13.11 mi
1:45:00
Rank: #14194 (+49)
20K → Half
5:21 | 7:50/mi
25K· 15.53 mi
2:04:32
Rank: #13993 (+201)
Half → 25K
19:32 | 8:03/mi
30K· 18.64 mi
2:30:31
Rank: #13888 (+105)
25K → 30K
25:59 | 8:22/mi
20M
2:42:04
Rank: #13857 (+31)
30K → 20M
11:33 | 8:30/mi
21M
2:50:49
Rank: #13727 (+130)
20M → 21M
8:45 | 8:45/mi
35K· 21.75 mi
2:56:50
Rank: #13658 (+69)
21M → 35K
6:01 | 8:03/mi
23M
3:07:07
Rank: #13485 (+173)
35K → 23M
10:17 | 8:13/mi
24M
3:15:24
Rank: #13436 (+49)
23M → 24M
8:17 | 8:17/mi
40K· 24.85 mi
3:22:34
Rank: #13370 (+66)
24M → 40K
7:10 | 8:23/mi
25.2M
3:25:36
Rank: #13322 (+48)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:33:34
Rank: #13210 (+112)
25.2M → Finish
7:58 | 7:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:00
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time1:48:34
Pace8:17 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1925:048:0425:04
8:04
-
10K
6.21 mi11:40:1349:588:0224:54
8:01
-0:03
15K
9.32 mi12:05:001:14:458:0124:47
7:59
-0:02
20K
12.43 mi12:29:541:39:398:0124:54
8:01
+0:02
Half
13.11 mi12:35:151:45:008:015:21
7:50
-0:11
25K
15.53 mi12:54:472:04:328:0119:32
8:03
+0:13
30K
18.64 mi13:20:462:30:318:0425:59
8:22
+0:19
20M
20.00 mi13:32:192:42:048:0611:33
8:30
+0:08
21M
21.00 mi13:41:042:50:498:088:45
8:45
+0:15
35K
21.75 mi13:47:052:56:508:086:01
8:03
-0:42
23M
23.00 mi13:57:223:07:078:0810:17
8:13
+0:10
24M
24.00 mi14:05:393:15:248:098:17
8:17
+0:04
40K
24.85 mi14:12:493:22:348:097:10
8:23
+0:06
25.2M
25.20 mi14:15:513:25:368:103:02
8:48
+0:25
Finish
26.22 mi14:23:493:33:348:097:58
7:49
-0:59

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

7:49 /mi

Average Pace

8:09 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:21:47

94% of race

Time at Steady Pace

11:47

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:09 /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 mi11:15:1925:048:0425:04
8:04
#14483
10K
6.21 mi11:40:1349:588:0224:54
8:01
#14681
15K
9.32 mi12:05:001:14:458:0124:47
7:59
#14496
20K
12.43 mi12:29:541:39:398:0124:54
8:01
#14243
Half
13.11 mi12:35:151:45:008:015:21
7:50
#14194
25K
15.53 mi12:54:472:04:328:0119:32
8:03
#13993
30K
18.64 mi13:20:462:30:318:0425:59
8:22
#13888
20M
20.00 mi13:32:192:42:048:0611:33
8:30
#13857
21M
21.00 mi13:41:042:50:498:088:45
8:45
#13727
35K
21.75 mi13:47:052:56:508:086:01
8:03
#13658
23M
23.00 mi13:57:223:07:078:0810:17
8:13
#13485
24M
24.00 mi14:05:393:15:248:098:17
8:17
#13436
40K
24.85 mi14:12:493:22:348:097:10
8:23
#13370
25.2M
25.20 mi14:15:513:25:368:103:02
8:48
#13322
Finish
26.22 mi14:23:493:33:348:097:58
7:49
#13210
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi144834315431514202(Top 53%)4201(Top 37%)4201(Top 86%)
10K6.21 mi3.10 mi14681-1984452-1374452-13714917(Top 56%)4618(Top 40%)4618(Top 95%)
15K9.32 mi3.11 mi14496+1854351+1014351+10114202(Top 53%)4201(Top 37%)4201(Top 86%)
20K12.43 mi3.11 mi14243+2534225+1264225+12613567(Top 51%)3853(Top 34%)3853(Top 79%)
Half13.11 mi0.68 mi14194+494197+284197+2813171(Top 49%)3605(Top 32%)3605(Top 74%)
25K15.53 mi2.42 mi13993+2014104+934104+9313208(Top 50%)3751(Top 33%)3751(Top 77%)
30K18.64 mi3.11 mi13888+1054072+324072+3213439(Top 50%)3996(Top 35%)3996(Top 82%)
20M20.00 mi1.36 mi13857+314075-34075-313627(Top 51%)4187(Top 37%)4187(Top 86%)
21M21.00 mi1.00 mi13727+1304007+684007+6811997(Top 45%)3399(Top 30%)3399(Top 70%)
35K21.75 mi0.75 mi13658+693981+263981+2612465(Top 47%)3684(Top 32%)3684(Top 75%)
23M23.00 mi1.25 mi13485+1733909+723909+7211309(Top 42%)3170(Top 28%)3170(Top 65%)
24M24.00 mi1.00 mi13436+493897+123897+1213183(Top 50%)4221(Top 37%)4221(Top 86%)
40K24.85 mi0.85 mi13370+663884+133884+1312609(Top 47%)4001(Top 35%)4001(Top 82%)
25.2M25.20 mi0.35 mi13322+483868+163868+1611400(Top 43%)3412(Top 30%)3412(Top 70%)
Finish26.22 mi1.02 mi13210+1123822+463822+4610845(Top 41%)3119(Top 27%)3119(Top 64%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

14202

Females

4201

F18-39

4201

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

14917

Females

4618

F18-39

4618

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

14202

Females

4201

F18-39

4201

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

13567

Females

3853

F18-39

3853

20K→Half

12.4 - 13.1 mi

Top 49%
×2stories
+19ft-37ft

Overall

13171

Females

3605

F18-39

3605

Half→25K

13.1 - 15.5 mi

Top 50%
×4stories
+66ft-88ft

Overall

13208

Females

3751

F18-39

3751

25K→30K

15.5 - 18.6 mi

Top 50%
×9stories
+181ft-148ft

Overall

13439

Females

3996

F18-39

3996

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

13627

Females

4187

F18-39

4187

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

11997

Females

3399

F18-39

3399

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

12465

Females

3684

F18-39

3684

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

11309

Females

3170

F18-39

3170

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

13183

Females

4221

F18-39

4221

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12609

Females

4001

F18-39

4001

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11400

Females

3412

F18-39

3412

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

10845

Females

3119

F18-39

3119

Passing Analysis

Category:
Athletes Passed
2297
Passed By
1024
Net Change
+1273
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14483
5K → 10K209407-198#14483#14681
10K → 15K298113+185#14681#14496
15K → 20K31057+253#14496#14243
20K → Half578+49#14243#14194
Half → 25K25251+201#14194#13993
25K → 30K238133+105#13993#13888
30K → 20M10978+31#13888#13857
20M → 21M16232+130#13857#13727
21M → 35K8617+69#13727#13658
35K → 23M19118+173#13658#13485
23M → 24M9748+49#13485#13436
24M → 40K9327+66#13436#13370
40K → 25.2M5911+48#13370#13322
25.2M → Finish13624+112#13322#13210
TOTALS22971024+1273
📊

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