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BOSTON MARATHON 2024

Sandra Webb

Bib: 16863•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 41%
Masters (Masters Women)
#0 / 6263
Top 29%
Division (F50-54)
#0 / 1187
Top 22%
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
7:45/mi
24:05
↑ 97↓ 3451.5%
10K· 6.21 mi
7:54/mi
48:37
↑ 79↓ 1380.4%
15K· 9.32 mi
8:01/mi
1:13:31
↑ 67↓ 78
20K· 12.43 mi
8:14/mi
1:39:06
↑ 106↓ 860.1%
Half· 13.11 mi
8:01/mi
1:44:34
↑ 19↓ 370.5%
25K· 15.53 mi
8:22/mi
2:04:51
↑ 66↓ 880.2%
30K· 18.64 mi
8:52/mi
2:32:24
↑ 181↓ 1480.2%
20M
9:02/mi
2:44:40
↑ 64↓ 500.2%
21M
10:33/mi
2:55:13
↑ 106↓ 241.6%
35K· 21.75 mi
8:35/mi
3:01:38
↑ 17↓ 861.7%
23M
9:38/mi
3:13:42
↑ 23↓ 630.6%
24M
8:40/mi
3:22:22
↓ 821.3%
40K· 24.85 mi
10:26/mi
3:31:17
↓ 200.3%
25.2M
13:23/mi
3:35:54
↑ 13↓ 160.2%
Finish· 26.22 mi
9:36/mi
3:45:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:34
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time2:01:07
Pace9:14 /mi
📊Positive Split: 15.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1224:057:4524:05
7:45
-
10K
6.21 mi11:38:4448:377:4924:32
7:54
+0:09
15K
9.32 mi12:03:381:13:317:5324:54
8:01
+0:07
20K
12.43 mi12:29:131:39:067:5825:35
8:14
+0:13
Half
13.11 mi12:34:411:44:347:595:28
8:01
-0:13
25K
15.53 mi12:54:582:04:518:0220:17
8:22
+0:21
30K
18.64 mi13:22:312:32:248:1127:33
8:52
+0:30
20M
20.00 mi13:34:472:44:408:1412:16
9:02
+0:10
21M
21.00 mi13:45:202:55:138:2110:33
10:33
+1:31
35K
21.75 mi13:51:453:01:388:216:25
8:35
-1:58
23M
23.00 mi14:03:493:13:428:2512:04
9:38
+1:03
24M
24.00 mi14:12:293:22:228:268:40
8:40
-0:58
40K
24.85 mi14:21:243:31:178:308:55
10:26
+1:46
25.2M
25.20 mi14:26:013:35:548:344:37
13:23
+2:57
Finish
26.22 mi14:35:483:45:418:379:47
9:36
-3:47

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

7:45 /mi

Average Pace

8:37 /mi

Slowest Pace

13:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

48:37

22% of race

Time at Steady Pace

2:11:08

58% of race

Time at Slower Pace

45:56

20% of race

Average Pace: 8:36 /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 mi11:14:1224:057:4524:05
7:45
#12748
10K
6.21 mi11:38:4448:377:4924:32
7:54
#13059
15K
9.32 mi12:03:381:13:317:5324:54
8:01
#13215
20K
12.43 mi12:29:131:39:067:5825:35
8:14
#13222
Half
13.11 mi12:34:411:44:347:595:28
8:01
#13180
25K
15.53 mi12:54:582:04:518:0220:17
8:22
#12990
30K
18.64 mi13:22:312:32:248:1127:33
8:52
#12809
20M
20.00 mi13:34:472:44:408:1412:16
9:02
#12718
21M
21.00 mi13:45:202:55:138:2110:33
10:33
#12854
35K
21.75 mi13:51:453:01:388:216:25
8:35
#12759
23M
23.00 mi14:03:493:13:428:2512:04
9:38
#12855
24M
24.00 mi14:12:293:22:228:268:40
8:40
#12704
40K
24.85 mi14:21:243:31:178:308:55
10:26
#12915
25.2M
25.20 mi14:26:013:35:548:344:37
13:23
#13135
Finish
26.22 mi14:35:483:45:418:379:47
9:36
#13293
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi127483574357413555(Top 53%)4114(Top 38%)4114(Top 347%)
10K6.21 mi3.10 mi13059-3113773-1993773-19913422(Top 53%)4005(Top 37%)4005(Top 337%)
15K9.32 mi3.11 mi13215-1563870-973870-9713555(Top 53%)4114(Top 38%)4114(Top 347%)
20K12.43 mi3.11 mi13222-73914-443914-4413333(Top 52%)4026(Top 37%)4026(Top 339%)
Half13.11 mi0.68 mi13180+423901+133901+1312916(Top 51%)3845(Top 35%)3845(Top 324%)
25K15.53 mi2.42 mi12990+1903803+983803+9812359(Top 48%)3707(Top 34%)3707(Top 312%)
30K18.64 mi3.11 mi12809+1813794+93794+912565(Top 49%)4039(Top 37%)4039(Top 340%)
20M20.00 mi1.36 mi12718+913810-163810-1612279(Top 48%)4173(Top 38%)4173(Top 352%)
21M21.00 mi1.00 mi12854-1363949-1393949-13915008(Top 59%)5819(Top 53%)5819(Top 490%)
35K21.75 mi0.75 mi12759+953934+153934+1511212(Top 44%)3875(Top 35%)3875(Top 326%)
23M23.00 mi1.25 mi12855-964050-1164050-11614085(Top 55%)5457(Top 50%)5457(Top 460%)
24M24.00 mi1.00 mi12704+1514013+374013+3710426(Top 41%)3655(Top 33%)3655(Top 308%)
40K24.85 mi0.85 mi12915-2114179-1664179-16616475(Top 64%)6733(Top 62%)6733(Top 567%)
25.2M25.20 mi0.35 mi13135-2204310-1314310-13120493(Top 80%)8754(Top 80%)8754(Top 737%)
Finish26.22 mi1.02 mi13293-1584430-1204430-12016943(Top 66%)6969(Top 64%)6969(Top 587%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

13555

Females

4114

F50-54

4114

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

13422

Females

4005

F50-54

4005

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

13555

Females

4114

F50-54

4114

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

13333

Females

4026

F50-54

4026

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

12916

Females

3845

F50-54

3845

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

12359

Females

3707

F50-54

3707

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

12565

Females

4039

F50-54

4039

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12279

Females

4173

F50-54

4173

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15008

Females

5819

F50-54

5819

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

11212

Females

3875

F50-54

3875

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

14085

Females

5457

F50-54

5457

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

10426

Females

3655

F50-54

3655

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

16475

Females

6733

F50-54

6733

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

20493

Females

8754

F50-54

8754

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

16943

Females

6969

F50-54

6969

Passing Analysis

Category:
Athletes Passed
2137
Passed By
2682
Net Change
-545
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12748
5K → 10K177488-311#12748#13059
10K → 15K163319-156#13059#13215
15K → 20K264271-7#13215#13222
20K → Half7735+42#13222#13180
Half → 25K337147+190#13180#12990
25K → 30K361180+181#12990#12809
30K → 20M17584+91#12809#12718
20M → 21M89225-136#12718#12854
21M → 35K11722+95#12854#12759
35K → 23M103199-96#12759#12855
23M → 24M17120+151#12855#12704
24M → 40K50261-211#12704#12915
40K → 25.2M6226-220#12915#13135
25.2M → Finish47205-158#13135#13293
TOTALS21372682-545
📊

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