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BOSTON MARATHON 2023

Lindsay Sarsfield

Bib: 16788•F

NH

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 43%
Gender (Female)
#0 / 11423
Top 25%
Division (F18-39)
#0 / 4884
Top 42%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:23
Rank: #15228
Start → 5K
25:23 | 8:10/mi
10K· 6.21 mi
48:56
Rank: #13389 (+1839)
5K → 10K
23:33 | 7:35/mi
15K· 9.32 mi
1:12:35
Rank: #12557 (+832)
10K → 15K
23:39 | 7:37/mi
20K· 12.43 mi
1:36:32
Rank: #12107 (+450)
15K → 20K
23:57 | 7:43/mi
Half· 13.11 mi
1:41:43
Rank: #12057 (+50)
20K → Half
5:11 | 7:36/mi
25K· 15.53 mi
2:00:28
Rank: #11769 (+288)
Half → 25K
18:45 | 7:44/mi
30K· 18.64 mi
2:25:07
Rank: #11487 (+282)
25K → 30K
24:39 | 7:56/mi
20M
2:36:06
Rank: #11403 (+84)
30K → 20M
10:59 | 8:05/mi
21M
2:44:45
Rank: #11383 (+20)
20M → 21M
8:39 | 8:39/mi
35K· 21.75 mi
2:50:50
Rank: #11448 (-65)
21M → 35K
6:05 | 8:08/mi
23M
3:01:29
Rank: #11562 (-114)
35K → 23M
10:39 | 8:30/mi
24M
3:09:46
Rank: #11641 (-79)
23M → 24M
8:17 | 8:17/mi
40K· 24.85 mi
3:17:05
Rank: #11729 (-88)
24M → 40K
7:19 | 8:33/mi
25.2M
3:20:02
Rank: #11684 (+45)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:27:46
Rank: #11537 (+147)
25.2M → Finish
7:44 | 7:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:43
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:46:03
Pace8:05 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:4625:238:1025:23
8:10
-
10K
6.21 mi11:41:1948:567:5323:33
7:35
-0:35
15K
9.32 mi12:04:581:12:357:4723:39
7:37
+0:02
20K
12.43 mi12:28:551:36:327:4623:57
7:43
+0:06
Half
13.11 mi12:34:061:41:437:465:11
7:36
-0:07
25K
15.53 mi12:52:512:00:287:4518:45
7:44
+0:08
30K
18.64 mi13:17:302:25:077:4724:39
7:56
+0:12
20M
20.00 mi13:28:292:36:067:4810:59
8:05
+0:09
21M
21.00 mi13:37:082:44:457:518:39
8:39
+0:34
35K
21.75 mi13:43:132:50:507:516:05
8:08
-0:31
23M
23.00 mi13:53:523:01:297:5310:39
8:30
+0:22
24M
24.00 mi14:02:093:09:467:548:17
8:17
-0:13
40K
24.85 mi14:09:283:17:057:567:19
8:33
+0:16
25.2M
25.20 mi14:12:253:20:027:562:57
8:33
0:00
Finish
26.22 mi14:20:093:27:467:567:44
7:35
-0:58

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

7:35 /mi

Average Pace

7:56 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:12

86% of race

Time at Steady Pace

29:34

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:55 /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 mi11:17:4625:238:1025:23
8:10
#15228
10K
6.21 mi11:41:1948:567:5323:33
7:35
#13389
15K
9.32 mi12:04:581:12:357:4723:39
7:37
#12557
20K
12.43 mi12:28:551:36:327:4623:57
7:43
#12107
Half
13.11 mi12:34:061:41:437:465:11
7:36
#12057
25K
15.53 mi12:52:512:00:287:4518:45
7:44
#11769
30K
18.64 mi13:17:302:25:077:4724:39
7:56
#11487
20M
20.00 mi13:28:292:36:067:4810:59
8:05
#11403
21M
21.00 mi13:37:082:44:457:518:39
8:39
#11383
35K
21.75 mi13:43:132:50:507:516:05
8:08
#11448
23M
23.00 mi13:53:523:01:297:5310:39
8:30
#11562
24M
24.00 mi14:02:093:09:467:548:17
8:17
#11641
40K
24.85 mi14:09:283:17:057:567:19
8:33
#11729
25.2M
25.20 mi14:12:253:20:027:562:57
8:33
#11684
Finish
26.22 mi14:20:093:27:467:567:44
7:35
#11537
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi152284787478711135(Top 42%)2426(Top 21%)2426(Top 50%)
10K6.21 mi3.10 mi13389+18393675+11123675+111211156(Top 42%)2407(Top 21%)2407(Top 49%)
15K9.32 mi3.11 mi12557+8323208+4673208+46711135(Top 42%)2426(Top 21%)2426(Top 50%)
20K12.43 mi3.11 mi12107+4502980+2282980+22811002(Top 41%)2406(Top 21%)2406(Top 49%)
Half13.11 mi0.68 mi12057+502951+292951+2911079(Top 42%)2421(Top 21%)2421(Top 50%)
25K15.53 mi2.42 mi11769+2882797+1542797+15410585(Top 40%)2280(Top 20%)2280(Top 47%)
30K18.64 mi3.11 mi11487+2822681+1162681+11610410(Top 39%)2358(Top 21%)2358(Top 48%)
20M20.00 mi1.36 mi11403+842660+212660+2110914(Top 41%)2694(Top 24%)2694(Top 55%)
21M21.00 mi1.00 mi11383+202663-32663-311369(Top 43%)3067(Top 27%)3067(Top 63%)
35K21.75 mi0.75 mi11448-652715-522715-5213006(Top 49%)3992(Top 35%)3992(Top 82%)
23M23.00 mi1.25 mi11562-1142803-882803-8813276(Top 50%)4218(Top 37%)4218(Top 86%)
24M24.00 mi1.00 mi11641-792865-622865-6213173(Top 49%)4211(Top 37%)4211(Top 86%)
40K24.85 mi0.85 mi11729-882935-702935-7013702(Top 51%)4569(Top 40%)4569(Top 94%)
25.2M25.20 mi0.35 mi11684+452922+132922+139947(Top 37%)2663(Top 23%)2663(Top 55%)
Finish26.22 mi1.02 mi11537+1472876+462876+469241(Top 35%)2350(Top 21%)2350(Top 48%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21stories
+97ft-345ft

Overall

11135

Females

2426

F18-39

2426

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11156

Females

2407

F18-39

2407

10K→15K

6.2 - 9.3 mi

Top 42%
×3stories
+67ft-78ft

Overall

11135

Females

2426

F18-39

2426

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

11002

Females

2406

F18-39

2406

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11079

Females

2421

F18-39

2421

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10585

Females

2280

F18-39

2280

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

10410

Females

2358

F18-39

2358

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

10914

Females

2694

F18-39

2694

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

11369

Females

3067

F18-39

3067

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

13006

Females

3992

F18-39

3992

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

13276

Females

4218

F18-39

4218

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

13173

Females

4211

F18-39

4211

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13702

Females

4569

F18-39

4569

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9947

Females

2663

F18-39

2663

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9241

Females

2350

F18-39

2350

Passing Analysis

Category:
Athletes Passed
4513
Passed By
822
Net Change
+3691
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15228
5K → 10K185617+1839#15228#13389
10K → 15K85624+832#13389#12557
15K → 20K47323+450#12557#12107
20K → Half6010+50#12107#12057
Half → 25K30719+288#12057#11769
25K → 30K33957+282#11769#11487
30K → 20M12743+84#11487#11403
20M → 21M9979+20#11403#11383
21M → 35K2994-65#11383#11448
35K → 23M65179-114#11448#11562
23M → 24M43122-79#11562#11641
24M → 40K38126-88#11641#11729
40K → 25.2M527+45#11729#11684
25.2M → Finish16922+147#11684#11537
TOTALS4513822+3691
📊

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