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BOSTON MARATHON 2023

Sarah Johnson

Bib: 25782•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
9:42/mi
30:08
↑ 97↓ 3451.5%
10K· 6.21 mi
9:18/mi
59:01
↑ 79↓ 1380.4%
15K· 9.32 mi
9:18/mi
1:27:56
↑ 67↓ 78
20K· 12.43 mi
9:29/mi
1:57:24
↑ 106↓ 860.1%
Half· 13.11 mi
9:37/mi
2:03:58
↑ 19↓ 370.5%
25K· 15.53 mi
9:38/mi
2:27:19
↑ 66↓ 880.2%
30K· 18.64 mi
9:46/mi
2:57:41
↑ 181↓ 1480.2%
20M
9:53/mi
3:11:07
↑ 64↓ 500.2%
21M
10:31/mi
3:21:38
↑ 106↓ 241.6%
35K· 21.75 mi
9:48/mi
3:28:58
↑ 17↓ 861.7%
23M
10:02/mi
3:41:32
↑ 23↓ 630.6%
24M
9:53/mi
3:51:25
↓ 821.3%
40K· 24.85 mi
10:02/mi
4:00:00
↓ 200.3%
25.2M
10:44/mi
4:03:42
↑ 13↓ 160.2%
Finish· 26.22 mi
9:18/mi
4:13:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:58
Pace9:27 /mi
2nd Half
Distance13.11 mi
Time2:09:13
Pace9:51 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:1730:089:4230:08
9:42
-
10K
6.21 mi12:18:1059:019:3028:53
9:18
-0:24
15K
9.32 mi12:47:051:27:569:2628:55
9:18
0:00
20K
12.43 mi13:16:331:57:249:2729:28
9:29
+0:11
Half
13.11 mi13:23:072:03:589:276:34
9:37
+0:08
25K
15.53 mi13:46:282:27:199:2923:21
9:38
+0:01
30K
18.64 mi14:16:502:57:419:3230:22
9:46
+0:08
20M
20.00 mi14:30:163:11:079:3313:26
9:53
+0:07
21M
21.00 mi14:40:473:21:389:3610:31
10:31
+0:38
35K
21.75 mi14:48:073:28:589:377:20
9:48
-0:43
23M
23.00 mi15:00:413:41:329:3812:34
10:02
+0:14
24M
24.00 mi15:10:343:51:259:399:53
9:53
-0:09
40K
24.85 mi15:19:094:00:009:398:35
10:02
+0:09
25.2M
25.20 mi15:22:514:03:429:403:42
10:44
+0:42
Finish
26.22 mi15:32:204:13:119:409:29
9:18
-1:26

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

9:18 /mi

Average Pace

9:40 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:58:58

94% of race

Time at Steady Pace

14:13

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:39 /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 mi11:49:1730:089:4230:08
9:42
#22657
10K
6.21 mi12:18:1059:019:3028:53
9:18
#22328
15K
9.32 mi12:47:051:27:569:2628:55
9:18
#22099
20K
12.43 mi13:16:331:57:249:2729:28
9:29
#21937
Half
13.11 mi13:23:072:03:589:276:34
9:37
#21962
25K
15.53 mi13:46:282:27:199:2923:21
9:38
#21844
30K
18.64 mi14:16:502:57:419:3230:22
9:46
#21574
20M
20.00 mi14:30:163:11:079:3313:26
9:53
#21475
21M
21.00 mi14:40:473:21:389:3610:31
10:31
#21353
35K
21.75 mi14:48:073:28:589:377:20
9:48
#21313
23M
23.00 mi15:00:413:41:329:3812:34
10:02
#21228
24M
24.00 mi15:10:343:51:259:399:53
9:53
#21185
40K
24.85 mi15:19:094:00:009:398:35
10:02
#21134
25.2M
25.20 mi15:22:514:03:429:403:42
10:44
#21112
Finish
26.22 mi15:32:204:13:119:409:29
9:18
#21048
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi226579210921021662(Top 81%)8590(Top 75%)8590(Top 176%)
10K6.21 mi3.10 mi22328+3299015+1959015+19521927(Top 82%)8783(Top 77%)8783(Top 180%)
15K9.32 mi3.11 mi22099+2298892+1238892+12321662(Top 81%)8590(Top 75%)8590(Top 176%)
20K12.43 mi3.11 mi21937+1628799+938799+9321511(Top 81%)8526(Top 75%)8526(Top 175%)
Half13.11 mi0.68 mi21962-258811-128811-1222456(Top 84%)9041(Top 79%)9041(Top 185%)
25K15.53 mi2.42 mi21844+1188736+758736+7521235(Top 80%)8403(Top 74%)8403(Top 172%)
30K18.64 mi3.11 mi21574+2708599+1378599+13720385(Top 77%)7991(Top 70%)7991(Top 164%)
20M20.00 mi1.36 mi21475+998552+478552+4720154(Top 76%)7957(Top 70%)7957(Top 163%)
21M21.00 mi1.00 mi21353+1228503+498503+4919670(Top 74%)7751(Top 68%)7751(Top 159%)
35K21.75 mi0.75 mi21313+408488+158488+1520786(Top 78%)8386(Top 73%)8386(Top 172%)
23M23.00 mi1.25 mi21228+858462+268462+2620107(Top 76%)8020(Top 70%)8020(Top 164%)
24M24.00 mi1.00 mi21185+438447+158447+1520476(Top 77%)8250(Top 72%)8250(Top 169%)
40K24.85 mi0.85 mi21134+518429+188429+1820092(Top 75%)8110(Top 71%)8110(Top 166%)
25.2M25.20 mi0.35 mi21112+228420+98420+919832(Top 74%)7973(Top 70%)7973(Top 163%)
Finish26.22 mi1.02 mi21048+648394+268394+2619421(Top 73%)7690(Top 67%)7690(Top 157%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

21662

Females

8590

F18-39

8590

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

21927

Females

8783

F18-39

8783

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

21662

Females

8590

F18-39

8590

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

21511

Females

8526

F18-39

8526

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

22456

Females

9041

F18-39

9041

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

21235

Females

8403

F18-39

8403

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

20385

Females

7991

F18-39

7991

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

20154

Females

7957

F18-39

7957

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

19670

Females

7751

F18-39

7751

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

20786

Females

8386

F18-39

8386

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

20107

Females

8020

F18-39

8020

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

20476

Females

8250

F18-39

8250

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

20092

Females

8110

F18-39

8110

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19832

Females

7973

F18-39

7973

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

19421

Females

7690

F18-39

7690

Passing Analysis

Category:
Athletes Passed
2071
Passed By
462
Net Change
+1609
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22657
5K → 10K435106+329#22657#22328
10K → 15K29970+229#22328#22099
15K → 20K22159+162#22099#21937
20K → Half1742-25#21937#21962
Half → 25K16345+118#21962#21844
25K → 30K28717+270#21844#21574
30K → 20M11819+99#21574#21475
20M → 21M13311+122#21475#21353
21M → 35K488+40#21353#21313
35K → 23M10924+85#21313#21228
23M → 24M6724+43#21228#21185
24M → 40K6716+51#21185#21134
40K → 25.2M308+22#21134#21112
25.2M → Finish7713+64#21112#21048
TOTALS2071462+1609
📊

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