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BOSTON MARATHON 2024

Sarah Bailey

Bib: 21658•F

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 50%
Masters (Masters Women)
#0 / 6263
Top 41%
Division (F50-54)
#0 / 1187
Top 35%
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
8:35/mi
26:39
↑ 97↓ 3451.5%
10K· 6.21 mi
8:32/mi
53:10
↑ 79↓ 1380.4%
15K· 9.32 mi
8:41/mi
1:20:10
↑ 67↓ 78
20K· 12.43 mi
8:42/mi
1:47:13
↑ 106↓ 860.1%
Half· 13.11 mi
8:26/mi
1:52:58
↑ 19↓ 370.5%
25K· 15.53 mi
8:50/mi
2:14:23
↑ 66↓ 880.2%
30K· 18.64 mi
9:14/mi
2:43:03
↑ 181↓ 1480.2%
20M
9:15/mi
2:55:37
↑ 64↓ 500.2%
21M
10:16/mi
3:05:53
↑ 106↓ 241.6%
35K· 21.75 mi
8:59/mi
3:12:36
↑ 17↓ 861.7%
23M
9:33/mi
3:24:33
↑ 23↓ 630.6%
24M
9:05/mi
3:33:38
↓ 821.3%
40K· 24.85 mi
9:23/mi
3:41:39
↓ 200.3%
25.2M
10:12/mi
3:45:10
↑ 13↓ 160.2%
Finish· 26.22 mi
8:51/mi
3:54:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:58
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time2:01:13
Pace9:15 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:4726:398:3526:39
8:35
-
10K
6.21 mi11:51:1853:108:3326:31
8:32
-0:03
15K
9.32 mi12:18:181:20:108:3627:00
8:41
+0:09
20K
12.43 mi12:45:211:47:138:3827:03
8:42
+0:01
Half
13.11 mi12:51:061:52:588:375:45
8:26
-0:16
25K
15.53 mi13:12:312:14:238:3921:25
8:50
+0:24
30K
18.64 mi13:41:112:43:038:4528:40
9:14
+0:24
20M
20.00 mi13:53:452:55:378:4712:34
9:15
+0:01
21M
21.00 mi14:04:013:05:538:5110:16
10:16
+1:01
35K
21.75 mi14:10:443:12:368:516:43
8:59
-1:17
23M
23.00 mi14:22:413:24:338:5411:57
9:33
+0:34
24M
24.00 mi14:31:463:33:388:549:05
9:05
-0:28
40K
24.85 mi14:39:473:41:398:558:01
9:23
+0:18
25.2M
25.20 mi14:43:183:45:108:563:31
10:12
+0:49
Finish
26.22 mi14:52:193:54:118:569:01
8:51
-1:21

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

8:26 /mi

Average Pace

8:56 /mi

Slowest Pace

10:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:58

48% of race

Time at Steady Pace

1:27:28

37% of race

Time at Slower Pace

33:45

14% of race

Average Pace: 8:56 /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 mi11:24:4726:398:3526:39
8:35
#18194
10K
6.21 mi11:51:1853:108:3326:31
8:32
#17844
15K
9.32 mi12:18:181:20:108:3627:00
8:41
#17684
20K
12.43 mi12:45:211:47:138:3827:03
8:42
#17130
Half
13.11 mi12:51:061:52:588:375:45
8:26
#17018
25K
15.53 mi13:12:312:14:238:3921:25
8:50
#16568
30K
18.64 mi13:41:112:43:038:4528:40
9:14
#16136
20M
20.00 mi13:53:452:55:378:4712:34
9:15
#15928
21M
21.00 mi14:04:013:05:538:5110:16
10:16
#15823
35K
21.75 mi14:10:443:12:368:516:43
8:59
#15716
23M
23.00 mi14:22:413:24:338:5411:57
9:33
#15590
24M
24.00 mi14:31:463:33:388:549:05
9:05
#15456
40K
24.85 mi14:39:473:41:398:558:01
9:23
#15328
25.2M
25.20 mi14:43:183:45:108:563:31
10:12
#15237
Finish
26.22 mi14:52:193:54:118:569:01
8:51
#15142
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi181946878687817435(Top 68%)6390(Top 58%)6390(Top 538%)
10K6.21 mi3.10 mi17844+3506645+2336645+23317500(Top 68%)6427(Top 59%)6427(Top 541%)
15K9.32 mi3.11 mi17684+1606539+1066539+10617435(Top 68%)6390(Top 58%)6390(Top 538%)
20K12.43 mi3.11 mi17130+5546245+2946245+29415894(Top 62%)5524(Top 51%)5524(Top 465%)
Half13.11 mi0.68 mi17018+1126186+596186+5915344(Top 60%)5243(Top 48%)5243(Top 442%)
25K15.53 mi2.42 mi16568+4505942+2445942+24414736(Top 58%)5031(Top 46%)5031(Top 424%)
30K18.64 mi3.11 mi16136+4325753+1895753+18914305(Top 56%)5038(Top 46%)5038(Top 424%)
20M20.00 mi1.36 mi15928+2085666+875666+8713414(Top 53%)4806(Top 44%)4806(Top 405%)
21M21.00 mi1.00 mi15823+1055652+145652+1414010(Top 55%)5316(Top 49%)5316(Top 448%)
35K21.75 mi0.75 mi15716+1075617+355617+3513234(Top 52%)4930(Top 45%)4930(Top 415%)
23M23.00 mi1.25 mi15590+1265592+255592+2513718(Top 54%)5278(Top 48%)5278(Top 445%)
24M24.00 mi1.00 mi15456+1345547+455547+4512604(Top 49%)4725(Top 43%)4725(Top 398%)
40K24.85 mi0.85 mi15328+1285507+405507+4012632(Top 49%)4857(Top 44%)4857(Top 409%)
25.2M25.20 mi0.35 mi15237+915473+345473+3411796(Top 46%)4506(Top 41%)4506(Top 380%)
Finish26.22 mi1.02 mi15142+955448+255448+2513458(Top 53%)5206(Top 48%)5206(Top 439%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

17435

Females

6390

F50-54

6390

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

17500

Females

6427

F50-54

6427

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

17435

Females

6390

F50-54

6390

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

15894

Females

5524

F50-54

5524

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

15344

Females

5243

F50-54

5243

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

14736

Females

5031

F50-54

5031

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

14305

Females

5038

F50-54

5038

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

13414

Females

4806

F50-54

4806

20M→21M

20.0 - 21.0 mi

Top 55%
×8story building
+106ft-24ft

Overall

14010

Females

5316

F50-54

5316

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

13234

Females

4930

F50-54

4930

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

13718

Females

5278

F50-54

5278

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

12604

Females

4725

F50-54

4725

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

12632

Females

4857

F50-54

4857

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

11796

Females

4506

F50-54

4506

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

13458

Females

5206

F50-54

5206

Passing Analysis

Category:
Athletes Passed
3673
Passed By
621
Net Change
+3052
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18194
5K → 10K475125+350#18194#17844
10K → 15K300140+160#17844#17684
15K → 20K59137+554#17684#17130
20K → Half1142+112#17130#17018
Half → 25K47424+450#17018#16568
25K → 30K49159+432#16568#16136
30K → 20M23123+208#16136#15928
20M → 21M16358+105#15928#15823
21M → 35K12013+107#15823#15716
35K → 23M18660+126#15716#15590
23M → 24M15925+134#15590#15456
24M → 40K14517+128#15456#15328
40K → 25.2M976+91#15328#15237
25.2M → Finish12732+95#15237#15142
TOTALS3673621+3052
📊

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