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BOSTON MARATHON 2023

Lisa Sheldon

Bib: 26119•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

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
9:47/mi
30:25
↑ 97↓ 3451.5%
10K· 6.21 mi
9:35/mi
1:00:11
↑ 79↓ 1380.4%
15K· 9.32 mi
9:30/mi
1:29:42
↑ 67↓ 78
20K· 12.43 mi
9:36/mi
1:59:30
↑ 106↓ 860.1%
Half· 13.11 mi
9:33/mi
2:06:01
↑ 19↓ 370.5%
25K· 15.53 mi
9:33/mi
2:29:11
↑ 66↓ 880.2%
30K· 18.64 mi
9:42/mi
2:59:20
↑ 181↓ 1480.2%
20M
10:17/mi
3:13:18
↑ 64↓ 500.2%
21M
11:09/mi
3:24:27
↑ 106↓ 241.6%
35K· 21.75 mi
9:59/mi
3:31:55
↑ 17↓ 861.7%
23M
10:37/mi
3:45:12
↑ 23↓ 630.6%
24M
10:03/mi
3:55:15
↓ 821.3%
40K· 24.85 mi
13:16/mi
4:06:36
↓ 200.3%
25.2M
11:07/mi
4:10:26
↑ 13↓ 160.2%
Finish· 26.22 mi
9:23/mi
4:20:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:01
Pace9:37 /mi
2nd Half
Distance13.11 mi
Time2:13:59
Pace10:13 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:4430:259:4730:25
9:47
-
10K
6.21 mi12:17:301:00:119:4129:46
9:35
-0:12
15K
9.32 mi12:47:011:29:429:3729:31
9:30
-0:05
20K
12.43 mi13:16:491:59:309:3729:48
9:36
+0:06
Half
13.11 mi13:23:202:06:019:376:31
9:33
-0:03
25K
15.53 mi13:46:302:29:119:3623:10
9:33
0:00
30K
18.64 mi14:16:392:59:209:3730:09
9:42
+0:09
20M
20.00 mi14:30:373:13:189:4013:58
10:17
+0:35
21M
21.00 mi14:41:463:24:279:4411:09
11:09
+0:52
35K
21.75 mi14:49:143:31:559:457:28
9:59
-1:10
23M
23.00 mi15:02:313:45:129:4713:17
10:37
+0:38
24M
24.00 mi15:12:343:55:159:4810:03
10:03
-0:34
40K
24.85 mi15:23:554:06:369:5511:21
13:16
+3:13
25.2M
25.20 mi15:27:454:10:269:563:50
11:07
-2:09
Finish
26.22 mi15:37:194:20:009:559:34
9:23
-1:44

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

9:23 /mi

Average Pace

9:55 /mi

Slowest Pace

13:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:26:25

79% of race

Time at Slower Pace

53:35

21% of race

Average Pace: 9:55 /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 mi11:47:4430:259:4730:25
9:47
#22891
10K
6.21 mi12:17:301:00:119:4129:46
9:35
#22851
15K
9.32 mi12:47:011:29:429:3729:31
9:30
#22654
20K
12.43 mi13:16:491:59:309:3729:48
9:36
#22452
Half
13.11 mi13:23:202:06:019:376:31
9:33
#22446
25K
15.53 mi13:46:302:29:119:3623:10
9:33
#22211
30K
18.64 mi14:16:392:59:209:3730:09
9:42
#21826
20M
20.00 mi14:30:373:13:189:4013:58
10:17
#21774
21M
21.00 mi14:41:463:24:279:4411:09
11:09
#21753
35K
21.75 mi14:49:143:31:559:457:28
9:59
#21738
23M
23.00 mi15:02:313:45:129:4713:17
10:37
#21726
24M
24.00 mi15:12:343:55:159:4810:03
10:03
#21698
40K
24.85 mi15:23:554:06:369:5511:21
13:16
#21920
25.2M
25.20 mi15:27:454:10:269:563:50
11:07
#21903
Finish
26.22 mi15:37:194:20:009:559:34
9:23
#21840
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi228919325932522272(Top 84%)8946(Top 78%)8946(Top 183%)
10K6.21 mi3.10 mi22851+409276+499276+4922736(Top 85%)9203(Top 81%)9203(Top 188%)
15K9.32 mi3.11 mi22654+1979166+1109166+11022272(Top 84%)8946(Top 78%)8946(Top 183%)
20K12.43 mi3.11 mi22452+2029060+1069060+10621835(Top 82%)8704(Top 76%)8704(Top 178%)
Half13.11 mi0.68 mi22446+69059+19059+122285(Top 84%)8939(Top 78%)8939(Top 183%)
25K15.53 mi2.42 mi22211+2358946+1138946+11321026(Top 79%)8281(Top 72%)8281(Top 170%)
30K18.64 mi3.11 mi21826+3858737+2098737+20920166(Top 76%)7868(Top 69%)7868(Top 161%)
20M20.00 mi1.36 mi21774+528719+188719+1821224(Top 80%)8535(Top 75%)8535(Top 175%)
21M21.00 mi1.00 mi21753+218718+18718+121166(Top 80%)8551(Top 75%)8551(Top 175%)
35K21.75 mi0.75 mi21738+158716+28716+221233(Top 80%)8621(Top 75%)8621(Top 177%)
23M23.00 mi1.25 mi21726+128727-118727-1121585(Top 81%)8841(Top 77%)8841(Top 181%)
24M24.00 mi1.00 mi21698+288727872720945(Top 79%)8515(Top 75%)8515(Top 174%)
40K24.85 mi0.85 mi21920-2228849-1228849-12225177(Top 95%)10766(Top 94%)10766(Top 220%)
25.2M25.20 mi0.35 mi21903+178849884920751(Top 78%)8457(Top 74%)8457(Top 173%)
Finish26.22 mi1.02 mi21840+638822+278822+2719738(Top 74%)7862(Top 69%)7862(Top 161%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

22272

Females

8946

F18-39

8946

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

22736

Females

9203

F18-39

9203

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

22272

Females

8946

F18-39

8946

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

21835

Females

8704

F18-39

8704

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

22285

Females

8939

F18-39

8939

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

21026

Females

8281

F18-39

8281

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

20166

Females

7868

F18-39

7868

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

21224

Females

8535

F18-39

8535

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

21166

Females

8551

F18-39

8551

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21233

Females

8621

F18-39

8621

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

21585

Females

8841

F18-39

8841

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

20945

Females

8515

F18-39

8515

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

25177

Females

10766

F18-39

10766

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20751

Females

8457

F18-39

8457

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

19738

Females

7862

F18-39

7862

Passing Analysis

Category:
Athletes Passed
1848
Passed By
797
Net Change
+1051
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22891
5K → 10K261221+40#22891#22851
10K → 15K25861+197#22851#22654
15K → 20K24745+202#22654#22452
20K → Half2620+6#22452#22446
Half → 25K24813+235#22446#22211
25K → 30K3938+385#22211#21826
30K → 20M9341+52#21826#21774
20M → 21M6342+21#21774#21753
21M → 35K3621+15#21753#21738
35K → 23M6654+12#21738#21726
23M → 24M5325+28#21726#21698
24M → 40K6228-222#21698#21920
40K → 25.2M2811+17#21920#21903
25.2M → Finish707+63#21903#21840
TOTALS1848797+1051
📊

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