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BOSTON MARATHON 2024

Sarah Sanderson

Bib: 21424•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 46%
Masters (Masters Women)
#0 / 6263
Top 36%
Division (F50-54)
#0 / 1187
Top 30%
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
8:05/mi
25:06
↑ 97↓ 3451.5%
10K· 6.21 mi
8:09/mi
50:26
↑ 79↓ 1380.4%
15K· 9.32 mi
8:17/mi
1:16:09
↑ 67↓ 78
20K· 12.43 mi
8:25/mi
1:42:19
↑ 106↓ 860.1%
Half· 13.11 mi
8:04/mi
1:47:49
↑ 19↓ 370.5%
25K· 15.53 mi
8:26/mi
2:08:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:46/mi
2:35:30
↑ 181↓ 1480.2%
20M
9:42/mi
2:48:41
↑ 64↓ 500.2%
21M
9:22/mi
2:58:03
↑ 106↓ 241.6%
35K· 21.75 mi
8:39/mi
3:04:31
↑ 17↓ 861.7%
23M
9:20/mi
3:16:12
↑ 23↓ 630.6%
24M
10:51/mi
3:27:03
↓ 821.3%
40K· 24.85 mi
12:11/mi
3:37:28
↓ 200.3%
25.2M
12:19/mi
3:41:43
↑ 13↓ 160.2%
Finish· 26.22 mi
8:59/mi
3:50:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:49
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time2:03:03
Pace9:23 /mi
📊Positive Split: 14.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:3925:068:0525:06
8:05
-
10K
6.21 mi11:47:5950:268:0725:20
8:09
+0:04
15K
9.32 mi12:13:421:16:098:1025:43
8:17
+0:08
20K
12.43 mi12:39:521:42:198:1426:10
8:25
+0:08
Half
13.11 mi12:45:221:47:498:135:30
8:04
-0:21
25K
15.53 mi13:05:502:08:178:1520:28
8:26
+0:22
30K
18.64 mi13:33:032:35:308:2127:13
8:46
+0:20
20M
20.00 mi13:46:142:48:418:2613:11
9:42
+0:56
21M
21.00 mi13:55:362:58:038:299:22
9:22
-0:20
35K
21.75 mi14:02:043:04:318:296:28
8:39
-0:43
23M
23.00 mi14:13:453:16:128:3211:41
9:20
+0:41
24M
24.00 mi14:24:363:27:038:3810:51
10:51
+1:31
40K
24.85 mi14:35:013:37:288:4510:25
12:11
+1:20
25.2M
25.20 mi14:39:163:41:438:484:15
12:19
+0:08
Finish
26.22 mi14:48:253:50:528:499:09
8:59
-3:20

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

8:04 /mi

Average Pace

8:49 /mi

Slowest Pace

12:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

30:36

13% of race

Time at Steady Pace

2:41:34

70% of race

Time at Slower Pace

38:42

17% of race

Average Pace: 8:48 /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 mi11:22:3925:068:0525:06
8:05
#15239
10K
6.21 mi11:47:5950:268:0725:20
8:09
#15228
15K
9.32 mi12:13:421:16:098:1025:43
8:17
#15167
20K
12.43 mi12:39:521:42:198:1426:10
8:25
#14925
Half
13.11 mi12:45:221:47:498:135:30
8:04
#14834
25K
15.53 mi13:05:502:08:178:1520:28
8:26
#14385
30K
18.64 mi13:33:032:35:308:2127:13
8:46
#13868
20M
20.00 mi13:46:142:48:418:2613:11
9:42
#13993
21M
21.00 mi13:55:362:58:038:299:22
9:22
#13713
35K
21.75 mi14:02:043:04:318:296:28
8:39
#13595
23M
23.00 mi14:13:453:16:128:3211:41
9:20
#13544
24M
24.00 mi14:24:363:27:038:3810:51
10:51
#13906
40K
24.85 mi14:35:013:37:288:4510:25
12:11
#14386
25.2M
25.20 mi14:39:163:41:438:484:15
12:19
#14464
Finish
26.22 mi14:48:253:50:528:499:09
8:59
#14438
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi152395090509015158(Top 59%)5058(Top 46%)5058(Top 426%)
10K6.21 mi3.10 mi15228+115073+175073+1715257(Top 60%)5083(Top 47%)5083(Top 428%)
15K9.32 mi3.11 mi15167+615052+215052+2115158(Top 59%)5058(Top 46%)5058(Top 426%)
20K12.43 mi3.11 mi14925+2424902+1504902+15014393(Top 56%)4668(Top 43%)4668(Top 393%)
Half13.11 mi0.68 mi14834+914855+474855+4713231(Top 52%)4045(Top 37%)4045(Top 341%)
25K15.53 mi2.42 mi14385+4494625+2304625+23012769(Top 50%)3923(Top 36%)3923(Top 330%)
30K18.64 mi3.11 mi13868+5174402+2234402+22312011(Top 47%)3746(Top 34%)3746(Top 316%)
20M20.00 mi1.36 mi13993-1254540-1384540-13815361(Top 60%)5871(Top 54%)5871(Top 495%)
21M21.00 mi1.00 mi13713+2804439+1014439+10110277(Top 40%)3375(Top 31%)3375(Top 284%)
35K21.75 mi0.75 mi13595+1184406+334406+3311569(Top 45%)4066(Top 37%)4066(Top 343%)
23M23.00 mi1.25 mi13544+514443-374443-3712755(Top 50%)4787(Top 44%)4787(Top 403%)
24M24.00 mi1.00 mi13906-3624677-2344677-23418832(Top 74%)7871(Top 72%)7871(Top 663%)
40K24.85 mi0.85 mi14386-4804991-3144991-31420804(Top 81%)8904(Top 82%)8904(Top 750%)
25.2M25.20 mi0.35 mi14464-785045-545045-5418126(Top 71%)7577(Top 69%)7577(Top 638%)
Finish26.22 mi1.02 mi14438+265054-95054-914109(Top 55%)5529(Top 51%)5529(Top 466%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15158

Females

5058

F50-54

5058

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

15257

Females

5083

F50-54

5083

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15158

Females

5058

F50-54

5058

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

14393

Females

4668

F50-54

4668

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13231

Females

4045

F50-54

4045

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

12769

Females

3923

F50-54

3923

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

12011

Females

3746

F50-54

3746

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

15361

Females

5871

F50-54

5871

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10277

Females

3375

F50-54

3375

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

11569

Females

4066

F50-54

4066

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

12755

Females

4787

F50-54

4787

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

18832

Females

7871

F50-54

7871

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

20804

Females

8904

F50-54

8904

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

18126

Females

7577

F50-54

7577

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

14109

Females

5529

F50-54

5529

Passing Analysis

Category:
Athletes Passed
2884
Passed By
2083
Net Change
+801
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15239
5K → 10K282271+11#15239#15228
10K → 15K268207+61#15228#15167
15K → 20K348106+242#15167#14925
20K → Half943+91#14925#14834
Half → 25K47627+449#14834#14385
25K → 30K57053+517#14385#13868
30K → 20M98223-125#13868#13993
20M → 21M30626+280#13993#13713
21M → 35K13618+118#13713#13595
35K → 23M14796+51#13595#13544
23M → 24M40402-362#13544#13906
24M → 40K18498-480#13906#14386
40K → 25.2M1896-78#14386#14464
25.2M → Finish8357+26#14464#14438
TOTALS28842083+801
📊

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