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BOSTON MARATHON 2023

Laura Lessman

Bib: 16556•F

IL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 43%
Gender (Female)
#0 / 11423
Top 24%
Division (F18-39)
#0 / 4884
Top 41%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:18
Rank: #12565
Start → 5K
7:49/mi
24:18 split
10K· 6.21 mi
47:26
Rank: #11215 (+1350)
5K → 10K
7:27/mi
23:08 split
15K· 9.32 mi
1:10:34
Rank: #10681 (+534)
10K → 15K
7:27/mi
23:08 split
20K· 12.43 mi
1:34:03
Rank: #10419 (+262)
15K → 20K
7:34/mi
23:29 split
Half· 13.11 mi
1:39:23
Rank: #10554 (-135)
20K → Half
7:49/mi
5:20 split
25K· 15.53 mi
1:58:44
Rank: #10849 (-295)
Half → 25K
7:59/mi
19:21 split
30K· 18.64 mi
2:23:58
Rank: #10950 (-101)
25K → 30K
8:07/mi
25:14 split
20M
2:35:15
Rank: #11045 (-95)
30K → 20M
8:18/mi
11:17 split
21M
2:44:17
Rank: #11199 (-154)
20M → 21M
9:02/mi
9:02 split
35K· 21.75 mi
2:50:12
Rank: #11198 (+1)
21M → 35K
7:55/mi
5:55 split
23M
3:00:45
Rank: #11290 (-92)
35K → 23M
8:26/mi
10:33 split
24M
3:09:20
Rank: #11500 (-210)
23M → 24M
8:35/mi
8:35 split
40K· 24.85 mi
3:16:12
Rank: #11424 (+76)
24M → 40K
8:02/mi
6:52 split
25.2M
3:19:08
Rank: #11386 (+38)
40K → 25.2M
8:30/mi
2:56 split
Finish· 26.22 mi
3:27:18
Rank: #11402 (-16)
25.2M → Finish
8:01/mi
8:10 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:23
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:47:55
Pace8:14 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:5824:187:4924:18
7:49
-
10K
6.21 mi11:42:0647:267:3823:08
7:27
-0:22
15K
9.32 mi12:05:141:10:347:3423:08
7:27
0:00
20K
12.43 mi12:28:431:34:037:3423:29
7:34
+0:07
Half
13.11 mi12:34:031:39:237:355:20
7:49
+0:15
25K
15.53 mi12:53:241:58:447:3919:21
7:59
+0:10
30K
18.64 mi13:18:382:23:587:4325:14
8:07
+0:08
20M
20.00 mi13:29:552:35:157:4611:17
8:18
+0:11
21M
21.00 mi13:38:572:44:177:499:02
9:02
+0:44
35K
21.75 mi13:44:522:50:127:505:55
7:55
-1:07
23M
23.00 mi13:55:253:00:457:5210:33
8:26
+0:31
24M
24.00 mi14:04:003:09:207:538:35
8:35
+0:09
40K
24.85 mi14:10:523:16:127:546:52
8:02
-0:33
25.2M
25.20 mi14:13:483:19:087:542:56
8:30
+0:28
Finish
26.22 mi14:21:583:27:187:558:10
8:01
-0:29

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

7:27 /mi

Average Pace

7:55 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:09:45

34% of race

Time at Steady Pace

1:35:10

46% of race

Time at Slower Pace

42:23

20% of race

Average Pace: 7:54 /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 mi11:18:5824:187:4924:18
7:49
#12565
10K
6.21 mi11:42:0647:267:3823:08
7:27
#11215
15K
9.32 mi12:05:141:10:347:3423:08
7:27
#10681
20K
12.43 mi12:28:431:34:037:3423:29
7:34
#10419
Half
13.11 mi12:34:031:39:237:355:20
7:49
#10554
25K
15.53 mi12:53:241:58:447:3919:21
7:59
#10849
30K
18.64 mi13:18:382:23:587:4325:14
8:07
#10950
20M
20.00 mi13:29:552:35:157:4611:17
8:18
#11045
21M
21.00 mi13:38:572:44:177:499:02
9:02
#11199
35K
21.75 mi13:44:522:50:127:505:55
7:55
#11198
23M
23.00 mi13:55:253:00:457:5210:33
8:26
#11290
24M
24.00 mi14:04:003:09:207:538:35
8:35
#11500
40K
24.85 mi14:10:523:16:127:546:52
8:02
#11424
25.2M
25.20 mi14:13:483:19:087:542:56
8:30
#11386
Finish
26.22 mi14:21:583:27:187:558:10
8:01
#11402
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi12565319431949750(Top 37%)1731(Top 15%)1731(Top 35%)
10K6.21 mi3.10 mi11215+13502449+7452449+74510050(Top 38%)1852(Top 16%)1852(Top 38%)
15K9.32 mi3.11 mi10681+5342161+2882161+2889750(Top 37%)1731(Top 15%)1731(Top 35%)
20K12.43 mi3.11 mi10419+2622034+1272034+1279783(Top 37%)1824(Top 16%)1824(Top 37%)
Half13.11 mi0.68 mi10554-1352095-612095-6112878(Top 48%)3407(Top 30%)3407(Top 70%)
25K15.53 mi2.42 mi10849-2952274-1792274-17912590(Top 47%)3407(Top 30%)3407(Top 70%)
30K18.64 mi3.11 mi10950-1012377-1032377-10311804(Top 44%)3064(Top 27%)3064(Top 63%)
20M20.00 mi1.36 mi11045-952461-842461-8412387(Top 47%)3505(Top 31%)3505(Top 72%)
21M21.00 mi1.00 mi11199-1542563-1022563-10213607(Top 51%)4263(Top 37%)4263(Top 87%)
35K21.75 mi0.75 mi11198+12572-92572-911484(Top 43%)3124(Top 27%)3124(Top 64%)
23M23.00 mi1.25 mi11290-922653-812653-8112755(Top 48%)3934(Top 34%)3934(Top 81%)
24M24.00 mi1.00 mi11500-2102794-1412794-14114967(Top 56%)5205(Top 46%)5205(Top 107%)
40K24.85 mi0.85 mi11424+762771+232771+2310288(Top 39%)2799(Top 25%)2799(Top 57%)
25.2M25.20 mi0.35 mi11386+382766+52766+59658(Top 36%)2541(Top 22%)2541(Top 52%)
Finish26.22 mi1.02 mi11402-162797-312797-3112242(Top 46%)3826(Top 33%)3826(Top 78%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

9750

Females

1731

F18-39

1731

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10050

Females

1852

F18-39

1852

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

9750

Females

1731

F18-39

1731

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

9783

Females

1824

F18-39

1824

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

12878

Females

3407

F18-39

3407

Half→25K

13.1 - 15.5 mi

Top 47%
×4stories
+66ft-88ft

Overall

12590

Females

3407

F18-39

3407

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

11804

Females

3064

F18-39

3064

30K→20M

18.6 - 20.0 mi

Top 47%
×5stories
+64ft-50ft

Overall

12387

Females

3505

F18-39

3505

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

13607

Females

4263

F18-39

4263

21M→35K

21.0 - 21.8 mi

Top 43%
×7stories
+17ft-86ft

Overall

11484

Females

3124

F18-39

3124

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

12755

Females

3934

F18-39

3934

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

14967

Females

5205

F18-39

5205

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10288

Females

2799

F18-39

2799

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9658

Females

2541

F18-39

2541

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

12242

Females

3826

F18-39

3826

Passing Analysis

Category:
Athletes Passed
2922*
Passed By
1759
Net Change
+1163
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12565
5K → 10K138535+1350#12565#11215
10K → 15K56329+534#11215#10681
15K → 20K30341+262#10681#10419
20K → Half4139-135#10419#10554
Half → 25K51346-295#10554#10849
25K → 30K156257-101#10849#10950
30K → 20M62*157-95#10950#11045
20M → 21M42196-154#11045#11199
21M → 35K4746+1#11199#11198
35K → 23M63155-92#11198#11290
23M → 24M22232-210#11290#11500
24M → 40K10125+76#11500#11424
40K → 25.2M5517+38#11424#11386
25.2M → Finish6884-16#11386#11402
TOTALS2922*1759+1163

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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