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BOSTON MARATHON 2024

Heather Nelson

Bib: 17585•F

UT

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Division (F18-39)
#0 / 4660
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:01
Rank: #21250
Start → 5K
9:20/mi
29:01 split
10K· 6.21 mi
57:28
Rank: #20815 (+435)
5K → 10K
9:09/mi
28:27 split
15K· 9.32 mi
1:26:40
Rank: #20642 (+173)
10K → 15K
9:24/mi
29:12 split
20K· 12.43 mi
1:59:43
Rank: #21038 (-396)
15K → 20K
10:38/mi
33:03 split
Half· 13.11 mi
2:06:24
Rank: #21027 (+11)
20K → Half
9:48/mi
6:41 split
25K· 15.53 mi
2:35:42
Rank: #21535 (-508)
Half → 25K
12:05/mi
29:18 split
30K· 18.64 mi
3:10:12
Rank: #21262 (+273)
25K → 30K
11:06/mi
34:30 split
20M
3:26:16
Rank: #21249 (+13)
30K → 20M
11:49/mi
16:04 split
21M
3:39:08
Rank: #21207 (+42)
20M → 21M
12:52/mi
12:52 split
35K· 21.75 mi
3:46:41
Rank: #21074 (+133)
21M → 35K
10:06/mi
7:33 split
23M
4:02:16
Rank: #21105 (-31)
35K → 23M
12:27/mi
15:35 split
24M
4:13:08
Rank: #20999 (+106)
23M → 24M
10:52/mi
10:52 split
40K· 24.85 mi
4:24:03
Rank: #21033 (-34)
24M → 40K
12:46/mi
10:55 split
25.2M
4:28:11
Rank: #20996 (+37)
40K → 25.2M
11:59/mi
4:08 split
Finish· 26.22 mi
4:38:49
Rank: #20932 (+64)
25.2M → Finish
10:26/mi
10:38 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:24
Pace9:39 /mi
2nd Half
Distance13.11 mi
Time2:32:25
Pace11:38 /mi
📊Positive Split: 20.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5229:019:2029:01
9:20
-
10K
6.21 mi11:49:1957:289:1528:27
9:09
-0:11
15K
9.32 mi12:18:311:26:409:1829:12
9:24
+0:15
20K
12.43 mi12:51:341:59:439:3833:03
10:38
+1:14
Half
13.11 mi12:58:152:06:249:396:41
9:48
-0:50
25K
15.53 mi13:27:332:35:4210:0129:18
12:05
+2:17
30K
18.64 mi14:02:033:10:1210:1234:30
11:06
-0:59
20M
20.00 mi14:18:073:26:1610:1916:04
11:49
+0:43
21M
21.00 mi14:30:593:39:0810:2612:52
12:52
+1:03
35K
21.75 mi14:38:323:46:4110:257:33
10:06
-2:46
23M
23.00 mi14:54:074:02:1610:3215:35
12:27
+2:21
24M
24.00 mi15:04:594:13:0810:3310:52
10:52
-1:35
40K
24.85 mi15:15:544:24:0310:3710:55
12:46
+1:54
25.2M
25.20 mi15:20:024:28:1110:394:08
11:59
-0:47
Finish
26.22 mi15:30:404:38:4910:3910:38
10:26
-1:33

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

9:09 /mi

Average Pace

10:39 /mi

Slowest Pace

12:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:54

36% of race

Time at Steady Pace

1:29:03

32% of race

Time at Slower Pace

1:28:52

32% of race

Average Pace: 10:38 /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 mi11:20:5229:019:2029:01
9:20
#21250
10K
6.21 mi11:49:1957:289:1528:27
9:09
#20815
15K
9.32 mi12:18:311:26:409:1829:12
9:24
#20642
20K
12.43 mi12:51:341:59:439:3833:03
10:38
#21038
Half
13.11 mi12:58:152:06:249:396:41
9:48
#21027
25K
15.53 mi13:27:332:35:4210:0129:18
12:05
#21535
30K
18.64 mi14:02:033:10:1210:1234:30
11:06
#21262
20M
20.00 mi14:18:073:26:1610:1916:04
11:49
#21249
21M
21.00 mi14:30:593:39:0810:2612:52
12:52
#21207
35K
21.75 mi14:38:323:46:4110:257:33
10:06
#21074
23M
23.00 mi14:54:074:02:1610:3215:35
12:27
#21105
24M
24.00 mi15:04:594:13:0810:3310:52
10:52
#20999
40K
24.85 mi15:15:544:24:0310:3710:55
12:46
#21033
25.2M
25.20 mi15:20:024:28:1110:394:08
11:59
#20996
Finish
26.22 mi15:30:404:38:4910:3910:38
10:26
#20932
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi212508541854120360(Top 80%)7978(Top 73%)7978(Top 171%)
10K6.21 mi3.10 mi20815+4358288+2538288+25320376(Top 80%)8035(Top 74%)8035(Top 172%)
15K9.32 mi3.11 mi20642+1738162+1268162+12620360(Top 80%)7978(Top 73%)7978(Top 171%)
20K12.43 mi3.11 mi21038-3968371-2098371-20921949(Top 86%)8881(Top 81%)8881(Top 191%)
Half13.11 mi0.68 mi21027+118371837120967(Top 82%)8393(Top 77%)8393(Top 180%)
25K15.53 mi2.42 mi21535-5088662-2918662-29123256(Top 91%)9675(Top 89%)9675(Top 208%)
30K18.64 mi3.11 mi21262+2738566+968566+9620222(Top 79%)8226(Top 75%)8226(Top 177%)
20M20.00 mi1.36 mi21249+138594-288594-2821041(Top 82%)8770(Top 80%)8770(Top 188%)
21M21.00 mi1.00 mi21207+428591+38591+320509(Top 80%)8585(Top 79%)8585(Top 184%)
35K21.75 mi0.75 mi21074+1338543+488543+4817486(Top 68%)7094(Top 65%)7094(Top 152%)
23M23.00 mi1.25 mi21105-318586-438586-4321602(Top 85%)9174(Top 84%)9174(Top 197%)
24M24.00 mi1.00 mi20999+1068554+328554+3218903(Top 74%)7910(Top 72%)7910(Top 170%)
40K24.85 mi0.85 mi21033-348580-268580-2621894(Top 86%)9417(Top 86%)9417(Top 202%)
25.2M25.20 mi0.35 mi20996+378566+148566+1417365(Top 68%)7234(Top 66%)7234(Top 155%)
Finish26.22 mi1.02 mi20932+648543+238543+2319831(Top 78%)8393(Top 77%)8393(Top 180%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

20360

Females

7978

F18-39

7978

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

20376

Females

8035

F18-39

8035

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

20360

Females

7978

F18-39

7978

15K→20K

9.3 - 12.4 mi

Top 86%
×5story building
+106ft-86ft

Overall

21949

Females

8881

F18-39

8881

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

20967

Females

8393

F18-39

8393

Half→25K

13.1 - 15.5 mi

Top 91%
×4story building
+66ft-88ft

Overall

23256

Females

9675

F18-39

9675

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

20222

Females

8226

F18-39

8226

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

21041

Females

8770

F18-39

8770

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

20509

Females

8585

F18-39

8585

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

17486

Females

7094

F18-39

7094

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

21602

Females

9174

F18-39

9174

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

18903

Females

7910

F18-39

7910

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

21894

Females

9417

F18-39

9417

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

17365

Females

7234

F18-39

7234

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

19831

Females

8393

F18-39

8393

Passing Analysis

Category:
Athletes Passed
1949
Passed By
1631
Net Change
+318
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21250
5K → 10K52085+435#21250#20815
10K → 15K297124+173#20815#20642
15K → 20K75471-396#20642#21038
20K → Half3726+11#21038#21027
Half → 25K48556-508#21027#21535
25K → 30K32350+273#21535#21262
30K → 20M8370+13#21262#21249
20M → 21M8038+42#21249#21207
21M → 35K1341+133#21207#21074
35K → 23M6798-31#21074#21105
23M → 24M1159+106#21105#20999
24M → 40K4377-34#20999#21033
40K → 25.2M447+37#21033#20996
25.2M → Finish8319+64#20996#20932
TOTALS19491631+318
📊

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