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BOSTON MARATHON 2024

Erin Spencer

Bib: 17760•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
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
8:13/mi
25:31
↑ 97↓ 3451.5%
10K· 6.21 mi
8:24/mi
51:36
↑ 79↓ 1380.4%
15K· 9.32 mi
8:35/mi
1:18:16
↑ 67↓ 78
20K· 12.43 mi
9:14/mi
1:46:56
↑ 106↓ 860.1%
Half· 13.11 mi
9:05/mi
1:53:08
↑ 19↓ 370.5%
25K· 15.53 mi
10:49/mi
2:19:22
↑ 66↓ 880.2%
30K· 18.64 mi
10:39/mi
2:52:28
↑ 181↓ 1480.2%
20M
12:44/mi
3:09:46
↑ 64↓ 500.2%
21M
12:22/mi
3:22:08
↑ 106↓ 241.6%
35K· 21.75 mi
13:45/mi
3:32:25
↑ 17↓ 861.7%
23M
14:05/mi
3:50:03
↑ 23↓ 630.6%
24M
12:41/mi
4:02:44
↓ 821.3%
40K· 24.85 mi
13:28/mi
4:14:15
↓ 200.3%
25.2M
14:15/mi
4:19:10
↑ 13↓ 160.2%
Finish· 26.22 mi
11:05/mi
4:30:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:08
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time2:37:20
Pace12:00 /mi
📊Positive Split: 39.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2925:318:1325:31
8:13
-
10K
6.21 mi11:43:3451:368:1826:05
8:24
+0:11
15K
9.32 mi12:10:141:18:168:2426:40
8:35
+0:11
20K
12.43 mi12:38:541:46:568:3628:40
9:14
+0:39
Half
13.11 mi12:45:061:53:088:386:12
9:05
-0:09
25K
15.53 mi13:11:202:19:228:5826:14
10:49
+1:44
30K
18.64 mi13:44:262:52:289:1533:06
10:39
-0:10
20M
20.00 mi14:01:443:09:469:2917:18
12:44
+2:05
21M
21.00 mi14:14:063:22:089:3812:22
12:22
-0:22
35K
21.75 mi14:24:233:32:259:4610:17
13:45
+1:23
23M
23.00 mi14:42:013:50:0310:0017:38
14:05
+0:20
24M
24.00 mi14:54:424:02:4410:0712:41
12:41
-1:24
40K
24.85 mi15:06:134:14:1510:1411:31
13:28
+0:47
25.2M
25.20 mi15:11:084:19:1010:174:55
14:15
+0:47
Finish
26.22 mi15:22:264:30:2810:1911:18
11:05
-3:10

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

8:13 /mi

Average Pace

10:19 /mi

Slowest Pace

14:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:08

42% of race

Time at Steady Pace

1:10:38

26% of race

Time at Slower Pace

1:26:42

32% of race

Average Pace: 10:19 /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 mi11:17:2925:318:1325:31
8:13
#16128
10K
6.21 mi11:43:3451:368:1826:05
8:24
#16386
15K
9.32 mi12:10:141:18:168:2426:40
8:35
#16487
20K
12.43 mi12:38:541:46:568:3628:40
9:14
#17014
Half
13.11 mi12:45:061:53:088:386:12
9:05
#17085
25K
15.53 mi13:11:202:19:228:5826:14
10:49
#18180
30K
18.64 mi13:44:262:52:289:1533:06
10:39
#18465
20M
20.00 mi14:01:443:09:469:2917:18
12:44
#18980
21M
21.00 mi14:14:063:22:089:3812:22
12:22
#19013
35K
21.75 mi14:24:233:32:259:4610:17
13:45
#19334
23M
23.00 mi14:42:013:50:0310:0017:38
14:05
#19734
24M
24.00 mi14:54:424:02:4410:0712:41
12:41
#19904
40K
24.85 mi15:06:134:14:1510:1411:31
13:28
#20069
25.2M
25.20 mi15:11:084:19:1010:174:55
14:15
#20092
Finish
26.22 mi15:22:264:30:2810:1911:18
11:05
#20149
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi161285641564116885(Top 66%)6079(Top 56%)6079(Top 377%)
10K6.21 mi3.10 mi16386-2585793-1525793-15216684(Top 65%)5942(Top 54%)5942(Top 368%)
15K9.32 mi3.11 mi16487-1015846-535846-5316885(Top 66%)6079(Top 56%)6079(Top 377%)
20K12.43 mi3.11 mi17014-5276175-3296175-32918297(Top 72%)6875(Top 63%)6875(Top 426%)
Half13.11 mi0.68 mi17085-716229-546229-5418705(Top 73%)7180(Top 66%)7180(Top 445%)
25K15.53 mi2.42 mi18180-10956868-6396868-63921131(Top 83%)8546(Top 78%)8546(Top 530%)
30K18.64 mi3.11 mi18465-2857087-2197087-21919173(Top 75%)7675(Top 70%)7675(Top 476%)
20M20.00 mi1.36 mi18980-5157391-3047391-30422501(Top 88%)9506(Top 87%)9506(Top 589%)
21M21.00 mi1.00 mi19013-337443-527443-5219598(Top 77%)8119(Top 74%)8119(Top 503%)
35K21.75 mi0.75 mi19334-3217620-1777620-17724061(Top 94%)10333(Top 95%)10333(Top 641%)
23M23.00 mi1.25 mi19734-4007859-2397859-23923872(Top 93%)10236(Top 94%)10236(Top 635%)
24M24.00 mi1.00 mi19904-1707949-907949-9022587(Top 88%)9704(Top 89%)9704(Top 602%)
40K24.85 mi0.85 mi20069-1658067-1188067-11822972(Top 90%)9915(Top 91%)9915(Top 615%)
25.2M25.20 mi0.35 mi20092-238083-168083-1622009(Top 86%)9470(Top 87%)9470(Top 587%)
Finish26.22 mi1.02 mi20149-578128-458128-4521564(Top 84%)9235(Top 85%)9235(Top 573%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

16885

Females

6079

F40-44

6079

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

16684

Females

5942

F40-44

5942

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

16885

Females

6079

F40-44

6079

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

18297

Females

6875

F40-44

6875

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

18705

Females

7180

F40-44

7180

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

21131

Females

8546

F40-44

8546

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

19173

Females

7675

F40-44

7675

30K→20M

18.6 - 20.0 mi

Top 88%
×5story building
+64ft-50ft

Overall

22501

Females

9506

F40-44

9506

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

19598

Females

8119

F40-44

8119

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

24061

Females

10333

F40-44

10333

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

23872

Females

10236

F40-44

10236

23M→24M

23.0 - 24.0 mi

Top 88%
×6story building
+12ft-82ft

Overall

22587

Females

9704

F40-44

9704

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

22972

Females

9915

F40-44

9915

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

22009

Females

9470

F40-44

9470

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

21564

Females

9235

F40-44

9235

Passing Analysis

Category:
Athletes Passed
984
Passed By
5005
Net Change
-4021
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16128
5K → 10K186444-258#16128#16386
10K → 15K198299-101#16386#16487
15K → 20K136663-527#16487#17014
20K → Half2596-71#17014#17085
Half → 25K301125-1095#17085#18180
25K → 30K160445-285#18180#18465
30K → 20M17532-515#18465#18980
20M → 21M73106-33#18980#19013
21M → 35K15336-321#19013#19334
35K → 23M28428-400#19334#19734
23M → 24M32202-170#19734#19904
24M → 40K27192-165#19904#20069
40K → 25.2M2043-23#20069#20092
25.2M → Finish3794-57#20092#20149
TOTALS9845005-4021
📊

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