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BOSTON MARATHON 2024

Ana Chaplin

Bib: 18814•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 47%
Masters (Masters Women)
#0 / 6263
Top 37%
Division (F40-44)
#0 / 1613
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
7:55/mi
24:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:00/mi
49:27
↑ 79↓ 1380.4%
15K· 9.32 mi
8:11/mi
1:14:52
↑ 67↓ 78
20K· 12.43 mi
8:36/mi
1:41:34
↑ 106↓ 860.1%
Half· 13.11 mi
8:29/mi
1:47:21
↑ 19↓ 370.5%
25K· 15.53 mi
9:06/mi
2:09:26
↑ 66↓ 880.2%
30K· 18.64 mi
9:42/mi
2:39:35
↑ 181↓ 1480.2%
20M
9:09/mi
2:52:01
↑ 64↓ 500.2%
21M
10:02/mi
3:02:03
↑ 106↓ 241.6%
35K· 21.75 mi
8:31/mi
3:08:25
↑ 17↓ 861.7%
23M
9:05/mi
3:19:47
↑ 23↓ 630.6%
24M
9:16/mi
3:29:03
↓ 821.3%
40K· 24.85 mi
10:44/mi
3:38:14
↓ 200.3%
25.2M
10:58/mi
3:42:01
↑ 13↓ 160.2%
Finish· 26.22 mi
9:24/mi
3:51:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:21
Pace8:11 /mi
2nd Half
Distance13.11 mi
Time2:04:15
Pace9:29 /mi
📊Positive Split: 15.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:1124:377:5524:37
7:55
-
10K
6.21 mi11:41:0149:277:5724:50
8:00
+0:05
15K
9.32 mi12:06:261:14:528:0225:25
8:11
+0:11
20K
12.43 mi12:33:081:41:348:1026:42
8:36
+0:25
Half
13.11 mi12:38:551:47:218:115:47
8:29
-0:07
25K
15.53 mi13:01:002:09:268:2022:05
9:06
+0:37
30K
18.64 mi13:31:092:39:358:3430:09
9:42
+0:36
20M
20.00 mi13:43:352:52:018:3612:26
9:09
-0:33
21M
21.00 mi13:53:373:02:038:4010:02
10:02
+0:53
35K
21.75 mi13:59:593:08:258:406:22
8:31
-1:31
23M
23.00 mi14:11:213:19:478:4111:22
9:05
+0:34
24M
24.00 mi14:20:373:29:038:439:16
9:16
+0:11
40K
24.85 mi14:29:483:38:148:479:11
10:44
+1:28
25.2M
25.20 mi14:33:353:42:018:493:47
10:58
+0:14
Finish
26.22 mi14:43:103:51:368:509:35
9:24
-1:34

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

7:55 /mi

Average Pace

8:50 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:43

49% of race

Time at Steady Pace

1:04:44

28% of race

Time at Slower Pace

53:09

23% of race

Average Pace: 8:50 /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 mi11:16:1124:377:5524:37
7:55
#14068
10K
6.21 mi11:41:0149:277:5724:50
8:00
#14114
15K
9.32 mi12:06:261:14:528:0225:25
8:11
#14282
20K
12.43 mi12:33:081:41:348:1026:42
8:36
#14567
Half
13.11 mi12:38:551:47:218:115:47
8:29
#14610
25K
15.53 mi13:01:002:09:268:2022:05
9:06
#14830
30K
18.64 mi13:31:092:39:358:3430:09
9:42
#15153
20M
20.00 mi13:43:352:52:018:3612:26
9:09
#14998
21M
21.00 mi13:53:373:02:038:4010:02
10:02
#14861
35K
21.75 mi13:59:593:08:258:406:22
8:31
#14694
23M
23.00 mi14:11:213:19:478:4111:22
9:05
#14471
24M
24.00 mi14:20:373:29:038:439:16
9:16
#14395
40K
24.85 mi14:29:483:38:148:479:11
10:44
#14532
25.2M
25.20 mi14:33:353:42:018:493:47
10:58
#14527
Finish
26.22 mi14:43:103:51:368:509:35
9:24
#14586
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi140684359435914619(Top 57%)4737(Top 43%)4737(Top 294%)
10K6.21 mi3.10 mi14114-464411-524411-5214166(Top 55%)4442(Top 41%)4442(Top 275%)
15K9.32 mi3.11 mi14282-1684502-914502-9114619(Top 57%)4737(Top 43%)4737(Top 294%)
20K12.43 mi3.11 mi14567-2854695-1934695-19315306(Top 60%)5187(Top 47%)5187(Top 322%)
Half13.11 mi0.68 mi14610-434735-404735-4015600(Top 61%)5400(Top 49%)5400(Top 335%)
25K15.53 mi2.42 mi14830-2204890-1554890-15516020(Top 63%)5727(Top 52%)5727(Top 355%)
30K18.64 mi3.11 mi15153-3235173-2835173-28316267(Top 64%)6110(Top 56%)6110(Top 379%)
20M20.00 mi1.36 mi14998+1555125+485125+4812897(Top 50%)4523(Top 41%)4523(Top 280%)
21M21.00 mi1.00 mi14861+1375094+315094+3113109(Top 51%)4850(Top 44%)4850(Top 301%)
35K21.75 mi0.75 mi14694+1675033+615033+6110858(Top 42%)3687(Top 34%)3687(Top 229%)
23M23.00 mi1.25 mi14471+2234968+654968+6511598(Top 45%)4213(Top 39%)4213(Top 261%)
24M24.00 mi1.00 mi14395+764963+54963+513415(Top 53%)5133(Top 47%)5133(Top 318%)
40K24.85 mi0.85 mi14532-1375073-1105073-11017401(Top 68%)7222(Top 66%)7222(Top 448%)
25.2M25.20 mi0.35 mi14527+55087-145087-1414414(Top 56%)5757(Top 53%)5757(Top 357%)
Finish26.22 mi1.02 mi14586-595140-535140-5316106(Top 63%)6556(Top 60%)6556(Top 406%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

14619

Females

4737

F40-44

4737

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

14166

Females

4442

F40-44

4442

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

14619

Females

4737

F40-44

4737

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

15306

Females

5187

F40-44

5187

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

15600

Females

5400

F40-44

5400

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

16020

Females

5727

F40-44

5727

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

16267

Females

6110

F40-44

6110

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

12897

Females

4523

F40-44

4523

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

13109

Females

4850

F40-44

4850

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

10858

Females

3687

F40-44

3687

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

11598

Females

4213

F40-44

4213

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

13415

Females

5133

F40-44

5133

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

17401

Females

7222

F40-44

7222

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14414

Females

5757

F40-44

5757

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

16106

Females

6556

F40-44

6556

Passing Analysis

Category:
Athletes Passed
2064
Passed By
2582
Net Change
-518
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14068
5K → 10K271317-46#14068#14114
10K → 15K177345-168#14114#14282
15K → 20K159444-285#14282#14567
20K → Half3881-43#14567#14610
Half → 25K147367-220#14610#14830
25K → 30K170493-323#14830#15153
30K → 20M20247+155#15153#14998
20M → 21M20063+137#14998#14861
21M → 35K1758+167#14861#14694
35K → 23M25431+223#14694#14471
23M → 24M13458+76#14471#14395
24M → 40K43180-137#14395#14532
40K → 25.2M4136+5#14532#14527
25.2M → Finish53112-59#14527#14586
TOTALS20642582-518
📊

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