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BOSTON MARATHON 2024

Ailsa Drelick

Bib: 21440•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F50-54)
#0 / 1187
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
8:26/mi
26:11
↑ 97↓ 3451.5%
10K· 6.21 mi
8:33/mi
52:46
↑ 79↓ 1380.4%
15K· 9.32 mi
8:29/mi
1:19:06
↑ 67↓ 78
20K· 12.43 mi
8:52/mi
1:46:40
↑ 106↓ 860.1%
Half· 13.11 mi
8:45/mi
1:52:38
↑ 19↓ 370.5%
25K· 15.53 mi
8:55/mi
2:14:16
↑ 66↓ 880.2%
30K· 18.64 mi
10:04/mi
2:45:33
↑ 181↓ 1480.2%
20M
9:26/mi
2:58:22
↑ 64↓ 500.2%
21M
11:14/mi
3:09:36
↑ 106↓ 241.6%
35K· 21.75 mi
10:00/mi
3:17:05
↑ 17↓ 861.7%
23M
10:49/mi
3:30:37
↑ 23↓ 630.6%
24M
10:41/mi
3:41:18
↓ 821.3%
40K· 24.85 mi
12:27/mi
3:51:57
↓ 200.3%
25.2M
13:23/mi
3:56:34
↑ 13↓ 160.2%
Finish· 26.22 mi
10:28/mi
4:07:14
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:38
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time2:14:36
Pace10:16 /mi
📊Positive Split: 19.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:1026:118:2626:11
8:26
-
10K
6.21 mi11:49:4552:468:3026:35
8:33
+0:07
15K
9.32 mi12:16:051:19:068:2926:20
8:29
-0:04
20K
12.43 mi12:43:391:46:408:3527:34
8:52
+0:23
Half
13.11 mi12:49:371:52:388:355:58
8:45
-0:07
25K
15.53 mi13:11:152:14:168:3921:38
8:55
+0:10
30K
18.64 mi13:42:322:45:338:5331:17
10:04
+1:09
20M
20.00 mi13:55:212:58:228:5512:49
9:26
-0:38
21M
21.00 mi14:06:353:09:369:0211:14
11:14
+1:48
35K
21.75 mi14:14:043:17:059:047:29
10:00
-1:14
23M
23.00 mi14:27:363:30:379:0913:32
10:49
+0:49
24M
24.00 mi14:38:173:41:189:1310:41
10:41
-0:08
40K
24.85 mi14:48:563:51:579:2010:39
12:27
+1:46
25.2M
25.20 mi14:53:333:56:349:234:37
13:23
+0:56
Finish
26.22 mi15:04:134:07:149:2610:40
10:28
-2:55

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

9:26 /mi

Slowest Pace

13:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:16

54% of race

Time at Steady Pace

1:12:56

29% of race

Time at Slower Pace

40:02

16% of race

Average Pace: 9:26 /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 mi11:23:1026:118:2626:11
8:26
#17381
10K
6.21 mi11:49:4552:468:3026:35
8:33
#17484
15K
9.32 mi12:16:051:19:068:2926:20
8:29
#17001
20K
12.43 mi12:43:391:46:408:3527:34
8:52
#16901
Half
13.11 mi12:49:371:52:388:355:58
8:45
#16893
25K
15.53 mi13:11:152:14:168:3921:38
8:55
#16539
30K
18.64 mi13:42:322:45:338:5331:17
10:04
#16787
20M
20.00 mi13:55:212:58:228:5512:49
9:26
#16605
21M
21.00 mi14:06:353:09:369:0211:14
11:14
#16677
35K
21.75 mi14:14:043:17:059:047:29
10:00
#16692
23M
23.00 mi14:27:363:30:379:0913:32
10:49
#16830
24M
24.00 mi14:38:173:41:189:1310:41
10:41
#16932
40K
24.85 mi14:48:563:51:579:2010:39
12:27
#17196
25.2M
25.20 mi14:53:333:56:349:234:37
13:23
#17257
Finish
26.22 mi15:04:134:07:149:2610:40
10:28
#17320
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi173816394639416281(Top 64%)5733(Top 52%)5733(Top 483%)
10K6.21 mi3.10 mi17484-1036440-466440-4617613(Top 69%)6500(Top 60%)6500(Top 548%)
15K9.32 mi3.11 mi17001+4836145+2956145+29516281(Top 64%)5733(Top 52%)5733(Top 483%)
20K12.43 mi3.11 mi16901+1006109+366109+3616765(Top 66%)6044(Top 55%)6044(Top 509%)
Half13.11 mi0.68 mi16893+86109610917113(Top 67%)6294(Top 58%)6294(Top 530%)
25K15.53 mi2.42 mi16539+3545924+1855924+18515187(Top 59%)5285(Top 48%)5285(Top 445%)
30K18.64 mi3.11 mi16787-2486137-2136137-21317572(Top 69%)6830(Top 63%)6830(Top 575%)
20M20.00 mi1.36 mi16605+1826075+626075+6214238(Top 56%)5264(Top 48%)5264(Top 443%)
21M21.00 mi1.00 mi16677-726141-666141-6616968(Top 66%)6839(Top 63%)6839(Top 576%)
35K21.75 mi0.75 mi16692-156170-296170-2917169(Top 67%)6930(Top 63%)6930(Top 584%)
23M23.00 mi1.25 mi16830-1386275-1056275-10517878(Top 70%)7352(Top 67%)7352(Top 619%)
24M24.00 mi1.00 mi16932-1026360-856360-8518384(Top 72%)7647(Top 70%)7647(Top 644%)
40K24.85 mi0.85 mi17196-2646537-1776537-17721308(Top 83%)9136(Top 84%)9136(Top 770%)
25.2M25.20 mi0.35 mi17257-616582-456582-4520497(Top 80%)8758(Top 80%)8758(Top 738%)
Finish26.22 mi1.02 mi17320-636652-706652-7019922(Top 78%)8429(Top 77%)8429(Top 710%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

16281

Females

5733

F50-54

5733

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

17613

Females

6500

F50-54

6500

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

16281

Females

5733

F50-54

5733

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

16765

Females

6044

F50-54

6044

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

17113

Females

6294

F50-54

6294

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

15187

Females

5285

F50-54

5285

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

17572

Females

6830

F50-54

6830

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

14238

Females

5264

F50-54

5264

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

16968

Females

6839

F50-54

6839

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

17169

Females

6930

F50-54

6930

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

17878

Females

7352

F50-54

7352

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

18384

Females

7647

F50-54

7647

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

21308

Females

9136

F50-54

9136

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

20497

Females

8758

F50-54

8758

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

19922

Females

8429

F50-54

8429

Passing Analysis

Category:
Athletes Passed
2247
Passed By
2186
Net Change
+61
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17381
5K → 10K237340-103#17381#17484
10K → 15K53754+483#17484#17001
15K → 20K300200+100#17001#16901
20K → Half4234+8#16901#16893
Half → 25K40248+354#16893#16539
25K → 30K153401-248#16539#16787
30K → 20M21533+182#16787#16605
20M → 21M85157-72#16605#16677
21M → 35K5469-15#16677#16692
35K → 23M61199-138#16692#16830
23M → 24M51153-102#16830#16932
24M → 40K36300-264#16932#17196
40K → 25.2M2384-61#17196#17257
25.2M → Finish51114-63#17257#17320
TOTALS22472186+61
📊

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