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BOSTON MARATHON 2024

Justine Nielsen

Bib: 30381•F

CA

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
34:17
Rank: #24869
Start → 5K
34:17 | 11:02/mi
10K· 6.21 mi
1:09:51
Rank: #24811 (+58)
5K → 10K
35:34 | 11:27/mi
15K· 9.32 mi
1:47:31
Rank: #24856 (-45)
10K → 15K
37:40 | 12:07/mi
20K· 12.43 mi
2:25:39
Rank: #24729 (+127)
15K → 20K
38:08 | 12:16/mi
Half· 13.11 mi
2:34:00
Rank: #24729
20K → Half
8:21 | 12:14/mi
25K· 15.53 mi
3:08:15
Rank: #24838 (-109)
Half → 25K
34:15 | 14:08/mi
30K· 18.64 mi
3:53:40
Rank: #24844 (-6)
25K → 30K
45:25 | 14:37/mi
20M
4:12:19
Rank: #24787 (+57)
30K → 20M
18:39 | 13:43/mi
21M
4:27:42
Rank: #24767 (+20)
20M → 21M
15:23 | 15:23/mi
35K· 21.75 mi
4:36:41
Rank: #24696 (+71)
21M → 35K
8:59 | 12:00/mi
23M
4:52:04
Rank: #24572 (+124)
35K → 23M
15:23 | 12:17/mi
24M
5:05:30
Rank: #24560 (+12)
23M → 24M
13:26 | 13:26/mi
40K· 24.85 mi
5:16:36
Rank: #24511 (+49)
24M → 40K
11:06 | 12:59/mi
25.2M
5:21:01
Rank: #24466 (+45)
40K → 25.2M
4:25 | 12:48/mi
Finish· 26.22 mi
5:32:12
Rank: #24410 (+56)
25.2M → Finish
11:11 | 10:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:34:00
Pace11:45 /mi
2nd Half
Distance13.11 mi
Time2:58:12
Pace13:36 /mi
📊Positive Split: 15.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:01:1434:1711:0234:17
11:02
-
10K
6.21 mi12:36:481:09:5111:1435:34
11:27
+0:25
15K
9.32 mi13:14:281:47:3111:3237:40
12:07
+0:40
20K
12.43 mi13:52:362:25:3911:4338:08
12:16
+0:09
Half
13.11 mi14:00:572:34:0011:458:21
12:14
-0:02
25K
15.53 mi14:35:123:08:1512:0734:15
14:08
+1:54
30K
18.64 mi15:20:373:53:4012:3245:25
14:37
+0:29
20M
20.00 mi15:39:164:12:1912:3718:39
13:43
-0:54
21M
21.00 mi15:54:394:27:4212:4515:23
15:23
+1:40
35K
21.75 mi16:03:384:36:4112:438:59
12:00
-3:23
23M
23.00 mi16:19:014:52:0412:4215:23
12:17
+0:17
24M
24.00 mi16:32:275:05:3012:4413:26
13:26
+1:09
40K
24.85 mi16:43:335:16:3612:4411:06
12:59
-0:27
25.2M
25.20 mi16:47:585:21:0112:444:25
12:48
-0:11
Finish
26.22 mi16:59:095:32:1212:4111:11
10:58
-1:50

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

10:58 /mi

Average Pace

12:41 /mi

Slowest Pace

15:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:02

24% of race

Time at Steady Pace

1:52:56

34% of race

Time at Slower Pace

2:18:14

42% of race

Average Pace: 12:40 /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 mi12:01:1434:1711:0234:17
11:02
#24869
10K
6.21 mi12:36:481:09:5111:1435:34
11:27
#24811
15K
9.32 mi13:14:281:47:3111:3237:40
12:07
#24856
20K
12.43 mi13:52:362:25:3911:4338:08
12:16
#24729
Half
13.11 mi14:00:572:34:0011:458:21
12:14
#24729
25K
15.53 mi14:35:123:08:1512:0734:15
14:08
#24838
30K
18.64 mi15:20:373:53:4012:3245:25
14:37
#24844
20M
20.00 mi15:39:164:12:1912:3718:39
13:43
#24787
21M
21.00 mi15:54:394:27:4212:4515:23
15:23
#24767
35K
21.75 mi16:03:384:36:4112:438:59
12:00
#24696
23M
23.00 mi16:19:014:52:0412:4215:23
12:17
#24572
24M
24.00 mi16:32:275:05:3012:4413:26
13:26
#24560
40K
24.85 mi16:43:335:16:3612:4411:06
12:59
#24511
25.2M
25.20 mi16:47:585:21:0112:444:25
12:48
#24466
Finish
26.22 mi16:59:095:32:1212:4111:11
10:58
#24410
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24869104791047924806(Top 97%)10458(Top 96%)10458(Top 224%)
10K6.21 mi3.10 mi24811+5810447+3210447+3224729(Top 97%)10404(Top 95%)10404(Top 223%)
15K9.32 mi3.11 mi24856-4510478-3110478-3124806(Top 97%)10458(Top 96%)10458(Top 224%)
20K12.43 mi3.11 mi24729+12710401+7710401+7724264(Top 95%)10164(Top 93%)10164(Top 218%)
Half13.11 mi0.68 mi24729104011040124759(Top 97%)10483(Top 96%)10483(Top 225%)
25K15.53 mi2.42 mi24838-10910486-8510486-8524998(Top 98%)10630(Top 97%)10630(Top 228%)
30K18.64 mi3.11 mi24844-610505-1910505-1924684(Top 97%)10514(Top 96%)10514(Top 226%)
20M20.00 mi1.36 mi24787+5710473+3210473+3223707(Top 93%)10104(Top 92%)10104(Top 217%)
21M21.00 mi1.00 mi24767+2010475-210475-223994(Top 94%)10265(Top 94%)10265(Top 220%)
35K21.75 mi0.75 mi24696+7110442+3310442+3321832(Top 85%)9271(Top 85%)9271(Top 199%)
23M23.00 mi1.25 mi24572+12410377+6510377+6521319(Top 83%)9045(Top 83%)9045(Top 194%)
24M24.00 mi1.00 mi24560+1210376+110376+123627(Top 92%)10204(Top 93%)10204(Top 219%)
40K24.85 mi0.85 mi24511+4910355+2110355+2122261(Top 87%)9581(Top 88%)9581(Top 206%)
25.2M25.20 mi0.35 mi24466+4510332+2310332+2319301(Top 76%)8182(Top 75%)8182(Top 176%)
Finish26.22 mi1.02 mi24410+5610312+2010312+2021300(Top 83%)9120(Top 83%)9120(Top 196%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21stories
+97ft-345ft

Overall

24806

Females

10458

F18-39

10458

5K→10K

3.1 - 6.2 mi

Top 97%
×5stories
+79ft-138ft

Overall

24729

Females

10404

F18-39

10404

10K→15K

6.2 - 9.3 mi

Top 97%
×3stories
+67ft-78ft

Overall

24806

Females

10458

F18-39

10458

15K→20K

9.3 - 12.4 mi

Top 95%
×5stories
+106ft-86ft

Overall

24264

Females

10164

F18-39

10164

20K→Half

12.4 - 13.1 mi

Top 97%
×2stories
+19ft-37ft

Overall

24759

Females

10483

F18-39

10483

Half→25K

13.1 - 15.5 mi

Top 98%
×4stories
+66ft-88ft

Overall

24998

Females

10630

F18-39

10630

25K→30K

15.5 - 18.6 mi

Top 97%
×9stories
+181ft-148ft

Overall

24684

Females

10514

F18-39

10514

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

23707

Females

10104

F18-39

10104

20M→21M

20.0 - 21.0 mi

Top 94%
×8stories
+106ft-24ft

Overall

23994

Females

10265

F18-39

10265

21M→35K

21.0 - 21.8 mi

Top 85%
×7stories
+17ft-86ft

Overall

21832

Females

9271

F18-39

9271

35K→23M

21.8 - 23.0 mi

Top 83%
×5stories
+23ft-63ft

Overall

21319

Females

9045

F18-39

9045

23M→24M

23.0 - 24.0 mi

Top 92%
×6stories
+12ft-82ft

Overall

23627

Females

10204

F18-39

10204

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

22261

Females

9581

F18-39

9581

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

19301

Females

8182

F18-39

8182

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

21300

Females

9120

F18-39

9120

Passing Analysis

Category:
Athletes Passed
962
Passed By
503
Net Change
+459
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24869
5K → 10K15092+58#24869#24811
10K → 15K57102-45#24811#24856
15K → 20K15124+127#24856#24729
20K → Half16160#24729#24729
Half → 25K25134-109#24729#24838
25K → 30K6167-6#24838#24844
30K → 20M647+57#24844#24787
20M → 21M4121+20#24787#24767
21M → 35K721+71#24767#24696
35K → 23M1273+124#24696#24572
23M → 24M3826+12#24572#24560
24M → 40K578+49#24560#24511
40K → 25.2M450+45#24511#24466
25.2M → Finish582+56#24466#24410
TOTALS962503+459
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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