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BOSTON MARATHON 2023

Sarah Lynch

Bib: 22426•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
8:49/mi
27:24
↑ 97↓ 3451.5%
10K· 6.21 mi
8:43/mi
54:29
↑ 79↓ 1380.4%
15K· 9.32 mi
8:43/mi
1:21:33
↑ 67↓ 78
20K· 12.43 mi
9:07/mi
1:49:54
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:55:32
↑ 19↓ 370.5%
25K· 15.53 mi
8:51/mi
2:17:00
↑ 66↓ 880.2%
30K· 18.64 mi
9:23/mi
2:46:09
↑ 181↓ 1480.2%
20M
9:20/mi
2:58:50
↑ 64↓ 500.2%
21M
9:54/mi
3:08:44
↑ 106↓ 241.6%
35K· 21.75 mi
9:04/mi
3:15:31
↑ 17↓ 861.7%
23M
9:15/mi
3:27:06
↑ 23↓ 630.6%
24M
9:00/mi
3:36:06
↓ 821.3%
40K· 24.85 mi
9:06/mi
3:43:53
↓ 200.3%
25.2M
9:46/mi
3:47:15
↑ 13↓ 160.2%
Finish· 26.22 mi
8:51/mi
3:56:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:32
Pace8:49 /mi
2nd Half
Distance13.11 mi
Time2:00:44
Pace9:13 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:0727:248:4927:24
8:49
-
10K
6.21 mi11:51:1254:298:4627:05
8:43
-0:06
15K
9.32 mi12:18:161:21:338:4527:04
8:43
0:00
20K
12.43 mi12:46:371:49:548:5128:21
9:07
+0:24
Half
13.11 mi12:52:151:55:328:495:38
8:15
-0:52
25K
15.53 mi13:13:432:17:008:4921:28
8:51
+0:36
30K
18.64 mi13:42:522:46:098:5529:09
9:23
+0:32
20M
20.00 mi13:55:332:58:508:5612:41
9:20
-0:03
21M
21.00 mi14:05:273:08:448:599:54
9:54
+0:34
35K
21.75 mi14:12:143:15:318:596:47
9:04
-0:50
23M
23.00 mi14:23:493:27:069:0011:35
9:15
+0:11
24M
24.00 mi14:32:493:36:069:009:00
9:00
-0:15
40K
24.85 mi14:40:363:43:539:007:47
9:06
+0:06
25.2M
25.20 mi14:43:583:47:159:013:22
9:46
+0:40
Finish
26.22 mi14:52:593:56:169:019:01
8:51
-0:55

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

8:15 /mi

Average Pace

9:01 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:40

50% of race

Time at Steady Pace

1:03:30

27% of race

Time at Slower Pace

55:06

23% of race

Average Pace: 9:01 /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 mi11:24:0727:248:4927:24
8:49
#19573
10K
6.21 mi11:51:1254:298:4627:05
8:43
#19506
15K
9.32 mi12:18:161:21:338:4527:04
8:43
#19335
20K
12.43 mi12:46:371:49:548:5128:21
9:07
#19552
Half
13.11 mi12:52:151:55:328:495:38
8:15
#19397
25K
15.53 mi13:13:432:17:008:4921:28
8:51
#19202
30K
18.64 mi13:42:522:46:098:5529:09
9:23
#19175
20M
20.00 mi13:55:332:58:508:5612:41
9:20
#19084
21M
21.00 mi14:05:273:08:448:599:54
9:54
#18997
35K
21.75 mi14:12:143:15:318:596:47
9:04
#18965
23M
23.00 mi14:23:493:27:069:0011:35
9:15
#18857
24M
24.00 mi14:32:493:36:069:009:00
9:00
#18765
40K
24.85 mi14:40:363:43:539:007:47
9:06
#18700
25.2M
25.20 mi14:43:583:47:159:013:22
9:46
#18667
Finish
26.22 mi14:52:593:56:169:019:01
8:51
#18615
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi195737559755919056(Top 72%)7139(Top 62%)7139(Top 393%)
10K6.21 mi3.10 mi19506+677467+927467+9219516(Top 73%)7394(Top 65%)7394(Top 407%)
15K9.32 mi3.11 mi19335+1717340+1277340+12719056(Top 72%)7139(Top 62%)7139(Top 393%)
20K12.43 mi3.11 mi19552-2177456-1167456-11620257(Top 76%)7816(Top 68%)7816(Top 430%)
Half13.11 mi0.68 mi19397+1557369+877369+8716289(Top 61%)5490(Top 48%)5490(Top 302%)
25K15.53 mi2.42 mi19202+1957242+1277242+12718257(Top 69%)6701(Top 59%)6701(Top 369%)
30K18.64 mi3.11 mi19175+277243-17243-118967(Top 71%)7178(Top 63%)7178(Top 395%)
20M20.00 mi1.36 mi19084+917199+447199+4418175(Top 68%)6838(Top 60%)6838(Top 376%)
21M21.00 mi1.00 mi18997+877164+357164+3517671(Top 66%)6570(Top 58%)6570(Top 362%)
35K21.75 mi0.75 mi18965+327156+87156+818204(Top 68%)6956(Top 61%)6956(Top 383%)
23M23.00 mi1.25 mi18857+1087108+487108+4817320(Top 65%)6463(Top 57%)6463(Top 356%)
24M24.00 mi1.00 mi18765+927065+437065+4317265(Top 65%)6503(Top 57%)6503(Top 358%)
40K24.85 mi0.85 mi18700+657036+297036+2916676(Top 63%)6229(Top 55%)6229(Top 343%)
25.2M25.20 mi0.35 mi18667+337028+87028+816443(Top 62%)6137(Top 54%)6137(Top 338%)
Finish26.22 mi1.02 mi18615+526999+296999+2917291(Top 65%)6532(Top 57%)6532(Top 359%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

19056

Females

7139

F45-49

7139

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

19516

Females

7394

F45-49

7394

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

19056

Females

7139

F45-49

7139

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

20257

Females

7816

F45-49

7816

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

16289

Females

5490

F45-49

5490

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

18257

Females

6701

F45-49

6701

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

18967

Females

7178

F45-49

7178

30K→20M

18.6 - 20.0 mi

Top 68%
×5story building
+64ft-50ft

Overall

18175

Females

6838

F45-49

6838

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

17671

Females

6570

F45-49

6570

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

18204

Females

6956

F45-49

6956

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

17320

Females

6463

F45-49

6463

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

17265

Females

6503

F45-49

6503

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16676

Females

6229

F45-49

6229

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16443

Females

6137

F45-49

6137

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

17291

Females

6532

F45-49

6532

Passing Analysis

Category:
Athletes Passed
2059
Passed By
1101
Net Change
+958
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19573
5K → 10K351284+67#19573#19506
10K → 15K286115+171#19506#19335
15K → 20K92309-217#19335#19552
20K → Half1550+155#19552#19397
Half → 25K23843+195#19397#19202
25K → 30K175148+27#19202#19175
30K → 20M13140+91#19175#19084
20M → 21M11730+87#19084#18997
21M → 35K5725+32#18997#18965
35K → 23M13325+108#18965#18857
23M → 24M11119+92#18857#18765
24M → 40K9025+65#18765#18700
40K → 25.2M407+33#18700#18667
25.2M → Finish8331+52#18667#18615
TOTALS20591101+958
📊

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