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BOSTON MARATHON 2023

Jenna Lester

Bib: 9295•F

CO

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 14%
Gender (Female)
#0 / 11423
Top 2%
Division (F18-39)
#0 / 4884
Top 4%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:51/mi
21:17
↑ 97↓ 3451.5%
10K· 6.21 mi
6:40/mi
42:00
↑ 79↓ 1380.4%
15K· 9.32 mi
6:46/mi
1:03:01
↑ 67↓ 78
20K· 12.43 mi
6:47/mi
1:24:05
↑ 106↓ 860.1%
Half· 13.11 mi
6:36/mi
1:28:35
↑ 19↓ 370.5%
25K· 15.53 mi
6:47/mi
1:45:02
↑ 66↓ 880.2%
30K· 18.64 mi
6:56/mi
2:06:35
↑ 181↓ 1480.2%
20M
6:54/mi
2:15:57
↑ 64↓ 500.2%
21M
7:15/mi
2:23:12
↑ 106↓ 241.6%
35K· 21.75 mi
6:38/mi
2:28:10
↑ 17↓ 861.7%
23M
6:55/mi
2:36:49
↑ 23↓ 630.6%
24M
6:41/mi
2:43:30
↓ 821.3%
40K· 24.85 mi
6:49/mi
2:49:20
↓ 200.3%
25.2M
7:21/mi
2:51:52
↑ 13↓ 160.2%
Finish· 26.22 mi
6:33/mi
2:58:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:35
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:29:57
Pace6:52 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:5621:176:5121:17
6:51
-
10K
6.21 mi11:07:3942:006:4620:43
6:40
-0:11
15K
9.32 mi11:28:401:03:016:4621:01
6:46
+0:06
20K
12.43 mi11:49:441:24:056:4621:04
6:47
+0:01
Half
13.11 mi11:54:141:28:356:454:30
6:36
-0:11
25K
15.53 mi12:10:411:45:026:4616:27
6:47
+0:11
30K
18.64 mi12:32:142:06:356:4721:33
6:56
+0:09
20M
20.00 mi12:41:362:15:576:489:22
6:54
-0:02
21M
21.00 mi12:48:512:23:126:497:15
7:15
+0:21
35K
21.75 mi12:53:492:28:106:494:58
6:38
-0:37
23M
23.00 mi13:02:282:36:496:498:39
6:55
+0:17
24M
24.00 mi13:09:092:43:306:496:41
6:41
-0:14
40K
24.85 mi13:14:592:49:206:495:50
6:49
+0:08
25.2M
25.20 mi13:17:312:51:526:492:32
7:21
+0:32
Finish
26.22 mi13:24:112:58:326:496:40
6:33
-0:48

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

6:33 /mi

Average Pace

6:49 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:45

95% of race

Time at Steady Pace

9:47

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:49 /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 mi10:46:5621:176:5121:17
6:51
#5163
10K
6.21 mi11:07:3942:006:4620:43
6:40
#4603
15K
9.32 mi11:28:401:03:016:4621:01
6:46
#4622
20K
12.43 mi11:49:441:24:056:4621:04
6:47
#4518
Half
13.11 mi11:54:141:28:356:454:30
6:36
#4440
25K
15.53 mi12:10:411:45:026:4616:27
6:47
#4349
30K
18.64 mi12:32:142:06:356:4721:33
6:56
#4232
20M
20.00 mi12:41:362:15:576:489:22
6:54
#4134
21M
21.00 mi12:48:512:23:126:497:15
7:15
#4053
35K
21.75 mi12:53:492:28:106:494:58
6:38
#3989
23M
23.00 mi13:02:282:36:496:498:39
6:55
#3910
24M
24.00 mi13:09:092:43:306:496:41
6:41
#3839
40K
24.85 mi13:14:592:49:206:495:50
6:49
#3774
25.2M
25.20 mi13:17:312:51:526:492:32
7:21
#3765
Finish
26.22 mi13:24:112:58:326:496:40
6:33
#3678
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi51633703704784(Top 18%)321(Top 3%)321(Top 7%)
10K6.21 mi3.10 mi4603+560299+71299+714057(Top 15%)238(Top 2%)238(Top 5%)
15K9.32 mi3.11 mi4622-19305-6305-64784(Top 18%)321(Top 3%)321(Top 7%)
20K12.43 mi3.11 mi4518+104294+11294+114276(Top 16%)271(Top 2%)271(Top 6%)
Half13.11 mi0.68 mi4440+78281+13281+133481(Top 13%)181(Top 2%)181(Top 4%)
25K15.53 mi2.42 mi4349+91270+11270+114040(Top 15%)250(Top 2%)250(Top 5%)
30K18.64 mi3.11 mi4232+117256+14256+143922(Top 15%)252(Top 2%)252(Top 5%)
20M20.00 mi1.36 mi4134+98249+7249+73405(Top 13%)220(Top 2%)220(Top 5%)
21M21.00 mi1.00 mi4053+81248+1248+13389(Top 13%)231(Top 2%)231(Top 5%)
35K21.75 mi0.75 mi3989+64241+7241+73275(Top 12%)221(Top 2%)221(Top 5%)
23M23.00 mi1.25 mi3910+79233+8233+83322(Top 12%)236(Top 2%)236(Top 5%)
24M24.00 mi1.00 mi3839+71230+3230+33055(Top 11%)217(Top 2%)217(Top 4%)
40K24.85 mi0.85 mi3774+65225+5225+52984(Top 11%)239(Top 2%)239(Top 5%)
25.2M25.20 mi0.35 mi3765+9224+1224+13257(Top 12%)287(Top 3%)287(Top 6%)
Finish26.22 mi1.02 mi3678+87217+7217+72711(Top 10%)232(Top 2%)232(Top 5%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21story building
+97ft-345ft

Overall

4784

Females

321

F18-39

321

5K→10K

3.1 - 6.2 mi

Top 15%
×5story building
+79ft-138ft

Overall

4057

Females

238

F18-39

238

10K→15K

6.2 - 9.3 mi

Top 18%
×3story building
+67ft-78ft

Overall

4784

Females

321

F18-39

321

15K→20K

9.3 - 12.4 mi

Top 16%
×5story building
+106ft-86ft

Overall

4276

Females

271

F18-39

271

20K→Half

12.4 - 13.1 mi

Top 13%
×2story building
+19ft-37ft

Overall

3481

Females

181

F18-39

181

Half→25K

13.1 - 15.5 mi

Top 15%
×4story building
+66ft-88ft

Overall

4040

Females

250

F18-39

250

25K→30K

15.5 - 18.6 mi

Top 15%
×9story building
+181ft-148ft

Overall

3922

Females

252

F18-39

252

30K→20M

18.6 - 20.0 mi

Top 13%
×5story building
+64ft-50ft

Overall

3405

Females

220

F18-39

220

20M→21M

20.0 - 21.0 mi

Top 13%
×8story building
+106ft-24ft

Overall

3389

Females

231

F18-39

231

21M→35K

21.0 - 21.8 mi

Top 12%
×7story building
+17ft-86ft

Overall

3275

Females

221

F18-39

221

35K→23M

21.8 - 23.0 mi

Top 12%
×5story building
+23ft-63ft

Overall

3322

Females

236

F18-39

236

23M→24M

23.0 - 24.0 mi

Top 11%
×6story building
+12ft-82ft

Overall

3055

Females

217

F18-39

217

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2984

Females

239

F18-39

239

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3257

Females

287

F18-39

287

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2story building
+22ft-21ft

Overall

2711

Females

232

F18-39

232

Passing Analysis

Category:
Athletes Passed
1945
Passed By
460
Net Change
+1485
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5163
5K → 10K59434+560#5163#4603
10K → 15K112131-19#4603#4622
15K → 20K15854+104#4622#4518
20K → Half802+78#4518#4440
Half → 25K13140+91#4440#4349
25K → 30K17154+117#4349#4232
30K → 20M11618+98#4232#4134
20M → 21M11029+81#4134#4053
21M → 35K728+64#4053#3989
35K → 23M9819+79#3989#3910
23M → 24M8413+71#3910#3839
24M → 40K8823+65#3839#3774
40K → 25.2M2617+9#3774#3765
25.2M → Finish10518+87#3765#3678
TOTALS1945460+1485
📊

Passing Visuals

Category:
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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