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BOSTON MARATHON 2024

Katherine Nielson

Bib: 7962•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 46%
Masters (Masters Women)
#0 / 6263
Top 36%
Division (F55-59)
#0 / 876
Top 18%
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
7:37/mi
23:41
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
47:39
↑ 79↓ 1380.4%
15K· 9.32 mi
7:49/mi
1:11:56
↑ 67↓ 78
20K· 12.43 mi
8:02/mi
1:36:54
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:42:10
↑ 19↓ 370.5%
25K· 15.53 mi
8:35/mi
2:02:59
↑ 66↓ 880.2%
30K· 18.64 mi
8:53/mi
2:30:34
↑ 181↓ 1480.2%
20M
9:19/mi
2:43:13
↑ 64↓ 500.2%
21M
11:34/mi
2:54:47
↑ 106↓ 241.6%
35K· 21.75 mi
11:19/mi
3:03:15
↑ 17↓ 861.7%
23M
11:05/mi
3:17:07
↑ 23↓ 630.6%
24M
10:22/mi
3:27:29
↓ 821.3%
40K· 24.85 mi
10:48/mi
3:36:43
↓ 200.3%
25.2M
12:14/mi
3:40:56
↑ 13↓ 160.2%
Finish· 26.22 mi
9:49/mi
3:50:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:10
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time2:08:46
Pace9:49 /mi
📊Positive Split: 26.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:1623:417:3723:41
7:37
-
10K
6.21 mi10:54:1447:397:4023:58
7:43
+0:06
15K
9.32 mi11:18:311:11:567:4324:17
7:49
+0:06
20K
12.43 mi11:43:291:36:547:4824:58
8:02
+0:13
Half
13.11 mi11:48:451:42:107:485:16
7:43
-0:19
25K
15.53 mi12:09:342:02:597:5520:49
8:35
+0:52
30K
18.64 mi12:37:092:30:348:0527:35
8:53
+0:18
20M
20.00 mi12:49:482:43:138:1012:39
9:19
+0:26
21M
21.00 mi13:01:222:54:478:1911:34
11:34
+2:15
35K
21.75 mi13:09:503:03:158:268:28
11:19
-0:15
23M
23.00 mi13:23:423:17:078:3413:52
11:05
-0:14
24M
24.00 mi13:34:043:27:298:3910:22
10:22
-0:43
40K
24.85 mi13:43:183:36:438:439:14
10:48
+0:26
25.2M
25.20 mi13:47:313:40:568:464:13
12:14
+1:26
Finish
26.22 mi13:57:313:50:568:4910:00
9:49
-2:25

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

7:37 /mi

Average Pace

8:49 /mi

Slowest Pace

12:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:10

44% of race

Time at Steady Pace

1:11:03

31% of race

Time at Slower Pace

57:43

25% of race

Average Pace: 8:48 /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 mi10:30:1623:417:3723:41
7:37
#11738
10K
6.21 mi10:54:1447:397:4023:58
7:43
#11832
15K
9.32 mi11:18:311:11:567:4324:17
7:49
#11894
20K
12.43 mi11:43:291:36:547:4824:58
8:02
#11880
Half
13.11 mi11:48:451:42:107:485:16
7:43
#11815
25K
15.53 mi12:09:342:02:597:5520:49
8:35
#12107
30K
18.64 mi12:37:092:30:348:0527:35
8:53
#12199
20M
20.00 mi12:49:482:43:138:1012:39
9:19
#12286
21M
21.00 mi13:01:222:54:478:1911:34
11:34
#12749
35K
21.75 mi13:09:503:03:158:268:28
11:19
#13242
23M
23.00 mi13:23:423:17:078:3413:52
11:05
#13769
24M
24.00 mi13:34:043:27:298:3910:22
10:22
#14019
40K
24.85 mi13:43:183:36:438:439:14
10:48
#14232
25.2M
25.20 mi13:47:313:40:568:464:13
12:14
#14321
Finish
26.22 mi13:57:313:50:568:4910:00
9:49
#14449
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi117382982298212073(Top 47%)3288(Top 30%)3288(Top 375%)
10K6.21 mi3.10 mi11832-943077-953077-9511990(Top 47%)3192(Top 29%)3192(Top 364%)
15K9.32 mi3.11 mi11894-623148-713148-7112073(Top 47%)3288(Top 30%)3288(Top 375%)
20K12.43 mi3.11 mi11880+143147+13147+112109(Top 47%)3381(Top 31%)3381(Top 386%)
Half13.11 mi0.68 mi11815+653127+203127+2010830(Top 42%)2727(Top 25%)2727(Top 311%)
25K15.53 mi2.42 mi12107-2923323-1963323-19613528(Top 53%)4342(Top 40%)4342(Top 496%)
30K18.64 mi3.11 mi12199-923461-1383461-13812647(Top 49%)4083(Top 37%)4083(Top 466%)
20M20.00 mi1.36 mi12286-873561-1003561-10013673(Top 54%)4949(Top 45%)4949(Top 565%)
21M21.00 mi1.00 mi12749-4633886-3253886-32517818(Top 70%)7241(Top 66%)7241(Top 827%)
35K21.75 mi0.75 mi13242-4934211-3254211-32520472(Top 80%)8573(Top 78%)8573(Top 979%)
23M23.00 mi1.25 mi13769-5274561-3504561-35018637(Top 73%)7711(Top 71%)7711(Top 880%)
24M24.00 mi1.00 mi14019-2504745-1844745-18417473(Top 68%)7187(Top 66%)7187(Top 820%)
40K24.85 mi0.85 mi14232-2134897-1524897-15217559(Top 69%)7297(Top 67%)7297(Top 833%)
25.2M25.20 mi0.35 mi14321-894968-714968-7117882(Top 70%)7482(Top 68%)7482(Top 854%)
Finish26.22 mi1.02 mi14449-1285063-955063-9517766(Top 70%)7386(Top 68%)7386(Top 843%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

12073

Females

3288

F55-59

3288

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

11990

Females

3192

F55-59

3192

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

12073

Females

3288

F55-59

3288

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

12109

Females

3381

F55-59

3381

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

10830

Females

2727

F55-59

2727

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

13528

Females

4342

F55-59

4342

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

12647

Females

4083

F55-59

4083

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

13673

Females

4949

F55-59

4949

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

17818

Females

7241

F55-59

7241

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

20472

Females

8573

F55-59

8573

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

18637

Females

7711

F55-59

7711

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

17473

Females

7187

F55-59

7187

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

17559

Females

7297

F55-59

7297

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

17882

Females

7482

F55-59

7482

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

17766

Females

7386

F55-59

7386

Passing Analysis

Category:
Athletes Passed
1527
Passed By
4238
Net Change
-2711
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11738
5K → 10K242336-94#11738#11832
10K → 15K215277-62#11832#11894
15K → 20K231217+14#11894#11880
20K → Half7712+65#11880#11815
Half → 25K154446-292#11815#12107
25K → 30K265357-92#12107#12199
30K → 20M116203-87#12199#12286
20M → 21M32495-463#12286#12749
21M → 35K19512-493#12749#13242
35K → 23M29556-527#13242#13769
23M → 24M52302-250#13769#14019
24M → 40K27240-213#14019#14232
40K → 25.2M22111-89#14232#14321
25.2M → Finish46174-128#14321#14449
TOTALS15274238-2711
📊

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