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BOSTON MARATHON 2024

Thessaly Nicolaysen

Bib: 15367•F

WA

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
25:14
Rank: #15538
Start → 5K
25:14 | 8:07/mi
10K· 6.21 mi
52:31
Rank: #17238 (-1700)
5K → 10K
27:17 | 8:47/mi
15K· 9.32 mi
1:22:26
Rank: #18902 (-1664)
10K → 15K
29:55 | 9:38/mi
20K· 12.43 mi
1:54:52
Rank: #19913 (-1011)
15K → 20K
32:26 | 10:26/mi
Half· 13.11 mi
2:01:29
Rank: #19963 (-50)
20K → Half
6:37 | 9:42/mi
25K· 15.53 mi
2:27:52
Rank: #20201 (-238)
Half → 25K
26:23 | 10:53/mi
30K· 18.64 mi
3:04:46
Rank: #20554 (-353)
25K → 30K
36:54 | 11:53/mi
20M
3:19:45
Rank: #20428 (+126)
30K → 20M
14:59 | 11:02/mi
21M
3:32:32
Rank: #20442 (-14)
20M → 21M
12:47 | 12:47/mi
35K· 21.75 mi
3:39:46
Rank: #20289 (+153)
21M → 35K
7:14 | 9:40/mi
23M
3:53:04
Rank: #20122 (+167)
35K → 23M
13:18 | 10:37/mi
24M
4:02:29
Rank: #19870 (+252)
23M → 24M
9:25 | 9:25/mi
40K· 24.85 mi
4:11:50
Rank: #19777 (+93)
24M → 40K
9:21 | 10:56/mi
25.2M
4:15:42
Rank: #19707 (+70)
40K → 25.2M
3:52 | 11:13/mi
Finish· 26.22 mi
4:25:17
Rank: #19576 (+131)
25.2M → Finish
9:35 | 9:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:29
Pace9:16 /mi
2nd Half
Distance13.11 mi
Time2:23:48
Pace10:58 /mi
📊Positive Split: 18.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:2825:148:0725:14
8:07
-
10K
6.21 mi11:25:4552:318:2727:17
8:47
+0:40
15K
9.32 mi11:55:401:22:268:5129:55
9:38
+0:51
20K
12.43 mi12:28:061:54:529:1532:26
10:26
+0:48
Half
13.11 mi12:34:432:01:299:166:37
9:42
-0:44
25K
15.53 mi13:01:062:27:529:3126:23
10:53
+1:11
30K
18.64 mi13:38:003:04:469:5536:54
11:53
+1:00
20M
20.00 mi13:52:593:19:459:5914:59
11:02
-0:51
21M
21.00 mi14:05:463:32:3210:0712:47
12:47
+1:45
35K
21.75 mi14:13:003:39:4610:067:14
9:40
-3:07
23M
23.00 mi14:26:183:53:0410:0813:18
10:37
+0:57
24M
24.00 mi14:35:434:02:2910:069:25
9:25
-1:12
40K
24.85 mi14:45:044:11:5010:089:21
10:56
+1:31
25.2M
25.20 mi14:48:564:15:4210:093:52
11:13
+0:17
Finish
26.22 mi14:58:314:25:1710:089:35
9:24
-1:49

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

8:07 /mi

Average Pace

10:08 /mi

Slowest Pace

12:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:17

43% of race

Time at Steady Pace

1:21:28

31% of race

Time at Slower Pace

1:08:32

26% of race

Average Pace: 10:07 /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 mi10:58:2825:148:0725:14
8:07
#15538
10K
6.21 mi11:25:4552:318:2727:17
8:47
#17238
15K
9.32 mi11:55:401:22:268:5129:55
9:38
#18902
20K
12.43 mi12:28:061:54:529:1532:26
10:26
#19913
Half
13.11 mi12:34:432:01:299:166:37
9:42
#19963
25K
15.53 mi13:01:062:27:529:3126:23
10:53
#20201
30K
18.64 mi13:38:003:04:469:5536:54
11:53
#20554
20M
20.00 mi13:52:593:19:459:5914:59
11:02
#20428
21M
21.00 mi14:05:463:32:3210:0712:47
12:47
#20442
35K
21.75 mi14:13:003:39:4610:067:14
9:40
#20289
23M
23.00 mi14:26:183:53:0410:0813:18
10:37
#20122
24M
24.00 mi14:35:434:02:2910:069:25
9:25
#19870
40K
24.85 mi14:45:044:11:5010:089:21
10:56
#19777
25.2M
25.20 mi14:48:564:15:4210:093:52
11:13
#19707
Finish
26.22 mi14:58:314:25:1710:089:35
9:24
#19576
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi155385282528221032(Top 82%)8339(Top 76%)8339(Top 179%)
10K6.21 mi3.10 mi17238-17006293-10116293-101118793(Top 74%)7188(Top 66%)7188(Top 154%)
15K9.32 mi3.11 mi18902-16647248-9557248-95521032(Top 82%)8339(Top 76%)8339(Top 179%)
20K12.43 mi3.11 mi19913-10117783-5357783-53521535(Top 84%)8648(Top 79%)8648(Top 186%)
Half13.11 mi0.68 mi19963-507809-267809-2620655(Top 81%)8230(Top 75%)8230(Top 177%)
25K15.53 mi2.42 mi20201-2387941-1327941-13221260(Top 83%)8610(Top 79%)8610(Top 185%)
30K18.64 mi3.11 mi20554-3538180-2398180-23921711(Top 85%)9005(Top 82%)9005(Top 193%)
20M20.00 mi1.36 mi20428+1268149+318149+3119351(Top 76%)7889(Top 72%)7889(Top 169%)
21M21.00 mi1.00 mi20442-148181-328181-3220373(Top 80%)8515(Top 78%)8515(Top 183%)
35K21.75 mi0.75 mi20289+1538124+578124+5716127(Top 63%)6419(Top 59%)6419(Top 138%)
23M23.00 mi1.25 mi20122+1678055+698055+6917381(Top 68%)7102(Top 65%)7102(Top 152%)
24M24.00 mi1.00 mi19870+2527928+1277928+12714157(Top 55%)5526(Top 51%)5526(Top 119%)
40K24.85 mi0.85 mi19777+937901+277901+2717927(Top 70%)7472(Top 68%)7472(Top 160%)
25.2M25.20 mi0.35 mi19707+707874+277874+2715250(Top 60%)6176(Top 57%)6176(Top 133%)
Finish26.22 mi1.02 mi19576+1317831+437831+4316135(Top 63%)6585(Top 60%)6585(Top 141%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

21032

Females

8339

F18-39

8339

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

18793

Females

7188

F18-39

7188

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

21032

Females

8339

F18-39

8339

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

21535

Females

8648

F18-39

8648

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

20655

Females

8230

F18-39

8230

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

21260

Females

8610

F18-39

8610

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

21711

Females

9005

F18-39

9005

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

19351

Females

7889

F18-39

7889

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

20373

Females

8515

F18-39

8515

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

16127

Females

6419

F18-39

6419

35K→23M

21.8 - 23.0 mi

Top 68%
×5stories
+23ft-63ft

Overall

17381

Females

7102

F18-39

7102

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

14157

Females

5526

F18-39

5526

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

17927

Females

7472

F18-39

7472

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15250

Females

6176

F18-39

6176

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

16135

Females

6585

F18-39

6585

Passing Analysis

Category:
Athletes Passed
1395
Passed By
5433
Net Change
-4038
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15538
5K → 10K201720-1700#15538#17238
10K → 15K151679-1664#17238#18902
15K → 20K561067-1011#18902#19913
20K → Half1565-50#19913#19963
Half → 25K83321-238#19963#20201
25K → 30K74427-353#20201#20554
30K → 20M15327+126#20554#20428
20M → 21M6680-14#20428#20442
21M → 35K1552+153#20442#20289
35K → 23M18215+167#20289#20122
23M → 24M2542+252#20122#19870
24M → 40K10613+93#19870#19777
40K → 25.2M733+70#19777#19707
25.2M → Finish14312+131#19707#19576
TOTALS13955433-4038
📊

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