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BOSTON MARATHON 2023

Kristen Nicolais

Bib: 17868•F

GA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:48
Rank: #16205
Start → 5K
25:48 | 8:18/mi
10K· 6.21 mi
50:56
Rank: #15819 (+386)
5K → 10K
25:08 | 8:05/mi
15K· 9.32 mi
1:16:27
Rank: #15849 (-30)
10K → 15K
25:31 | 8:13/mi
20K· 12.43 mi
1:41:29
Rank: #15360 (+489)
15K → 20K
25:02 | 8:03/mi
Half· 13.11 mi
1:47:00
Rank: #15319 (+41)
20K → Half
5:31 | 8:05/mi
25K· 15.53 mi
2:06:44
Rank: #15060 (+259)
Half → 25K
19:44 | 8:08/mi
30K· 18.64 mi
2:33:47
Rank: #15129 (-69)
25K → 30K
27:03 | 8:42/mi
20M
2:49:08
Rank: #16266 (-1137)
30K → 20M
15:21 | 11:18/mi
21M
3:05:20
Rank: #18120 (-1854)
20M → 21M
16:12 | 16:12/mi
35K· 21.75 mi
3:16:45
Rank: #19234 (-1114)
21M → 35K
11:25 | 15:16/mi
23M
3:37:48
Rank: #20697 (-1463)
35K → 23M
21:03 | 16:49/mi
24M
3:54:38
Rank: #21611 (-914)
23M → 24M
16:50 | 16:50/mi
40K· 24.85 mi
4:11:10
Rank: #22363 (-752)
24M → 40K
16:32 | 19:20/mi
25.2M
4:20:32
Rank: #22821 (-458)
40K → 25.2M
9:22 | 27:10/mi
Finish· 26.22 mi
4:40:47
Rank: #23601 (-780)
25.2M → Finish
20:15 | 19:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:00
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time2:53:47
Pace13:15 /mi
📊Positive Split: 62.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3025:488:1825:48
8:18
-
10K
6.21 mi11:41:3850:568:1225:08
8:05
-0:13
15K
9.32 mi12:07:091:16:278:1225:31
8:13
+0:08
20K
12.43 mi12:32:111:41:298:1025:02
8:03
-0:10
Half
13.11 mi12:37:421:47:008:105:31
8:05
+0:02
25K
15.53 mi12:57:262:06:448:0919:44
8:08
+0:03
30K
18.64 mi13:24:292:33:478:1527:03
8:42
+0:34
20M
20.00 mi13:39:502:49:088:2715:21
11:18
+2:36
21M
21.00 mi13:56:023:05:208:5016:12
16:12
+4:54
35K
21.75 mi14:07:273:16:459:0311:25
15:16
-0:56
23M
23.00 mi14:28:303:37:489:2821:03
16:49
+1:33
24M
24.00 mi14:45:203:54:389:4716:50
16:50
+0:01
40K
24.85 mi15:01:524:11:1010:0616:32
19:20
+2:30
25.2M
25.20 mi15:11:144:20:3210:209:22
27:10
+7:50
Finish
26.22 mi15:31:294:40:4710:4320:15
19:52
-7:18

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

8:03 /mi

Average Pace

10:43 /mi

Slowest Pace

27:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:44

45% of race

Time at Steady Pace

42:24

15% of race

Time at Slower Pace

1:51:39

40% of race

Average Pace: 10:43 /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 mi11:16:3025:488:1825:48
8:18
#16205
10K
6.21 mi11:41:3850:568:1225:08
8:05
#15819
15K
9.32 mi12:07:091:16:278:1225:31
8:13
#15849
20K
12.43 mi12:32:111:41:298:1025:02
8:03
#15360
Half
13.11 mi12:37:421:47:008:105:31
8:05
#15319
25K
15.53 mi12:57:262:06:448:0919:44
8:08
#15060
30K
18.64 mi13:24:292:33:478:1527:03
8:42
#15129
20M
20.00 mi13:39:502:49:088:2715:21
11:18
#16266
21M
21.00 mi13:56:023:05:208:5016:12
16:12
#18120
35K
21.75 mi14:07:273:16:459:0311:25
15:16
#19234
23M
23.00 mi14:28:303:37:489:2821:03
16:49
#20697
24M
24.00 mi14:45:203:54:389:4716:50
16:50
#21611
40K
24.85 mi15:01:524:11:1010:0616:32
19:20
#22363
25.2M
25.20 mi15:11:144:20:3210:209:22
27:10
#22821
Finish
26.22 mi15:31:294:40:4710:4320:15
19:52
#23601
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi162055415541515972(Top 60%)5285(Top 46%)5285(Top 108%)
10K6.21 mi3.10 mi15819+3865173+2425173+24215462(Top 58%)4948(Top 43%)4948(Top 101%)
15K9.32 mi3.11 mi15849-305186-135186-1315972(Top 60%)5285(Top 46%)5285(Top 108%)
20K12.43 mi3.11 mi15360+4894908+2784908+27813922(Top 52%)4069(Top 36%)4069(Top 83%)
Half13.11 mi0.68 mi15319+414888+204888+2015141(Top 57%)4786(Top 42%)4786(Top 98%)
25K15.53 mi2.42 mi15060+2594747+1414747+14113821(Top 52%)4114(Top 36%)4114(Top 84%)
30K18.64 mi3.11 mi15129-694843-964843-9615558(Top 58%)5250(Top 46%)5250(Top 107%)
20M20.00 mi1.36 mi16266-11375561-7185561-71823180(Top 87%)9614(Top 84%)9614(Top 197%)
21M21.00 mi1.00 mi18120-18546670-11096670-110926274(Top 99%)11257(Top 99%)11257(Top 230%)
35K21.75 mi0.75 mi19234-11147308-6387308-63826453(Top 99%)11349(Top 99%)11349(Top 232%)
23M23.00 mi1.25 mi20697-14638165-8578165-85726547(Top 100%)11393(Top 100%)11393(Top 233%)
24M24.00 mi1.00 mi21611-9148677-5128677-51226568(Top 100%)11402(Top 100%)11402(Top 233%)
40K24.85 mi0.85 mi22363-7529092-4159092-41526601(Top 100%)11415(Top 100%)11415(Top 234%)
25.2M25.20 mi0.35 mi22821-4589347-2559347-25526620(Top 100%)11422(Top 100%)11422(Top 234%)
Finish26.22 mi1.02 mi23601-7809761-4149761-41426610(Top 100%)11422(Top 100%)11422(Top 234%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

15972

Females

5285

F18-39

5285

5K→10K

3.1 - 6.2 mi

Top 58%
×5stories
+79ft-138ft

Overall

15462

Females

4948

F18-39

4948

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

15972

Females

5285

F18-39

5285

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

13922

Females

4069

F18-39

4069

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

15141

Females

4786

F18-39

4786

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

13821

Females

4114

F18-39

4114

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

15558

Females

5250

F18-39

5250

30K→20M

18.6 - 20.0 mi

Top 87%
×5stories
+64ft-50ft

Overall

23180

Females

9614

F18-39

9614

20M→21M

20.0 - 21.0 mi

Top 99%
×8stories
+106ft-24ft

Overall

26274

Females

11257

F18-39

11257

21M→35K

21.0 - 21.8 mi

Top 99%
×7stories
+17ft-86ft

Overall

26453

Females

11349

F18-39

11349

35K→23M

21.8 - 23.0 mi

Top 100%
×5stories
+23ft-63ft

Overall

26547

Females

11393

F18-39

11393

23M→24M

23.0 - 24.0 mi

Top 100%
×6stories
+12ft-82ft

Overall

26568

Females

11402

F18-39

11402

24M→40K

24.0 - 24.9 mi

Top 100%
×1story
+6ft-20ft

Overall

26601

Females

11415

F18-39

11415

40K→25.2M

24.9 - 25.2 mi

Top 100%
×1story
+13ft-16ft

Overall

26620

Females

11422

F18-39

11422

25.2M→Finish

25.2 - 26.2 mi

Top 100%
×2stories
+22ft-21ft

Overall

26610

Females

11422

F18-39

11422

Passing Analysis

Category:
Athletes Passed
1719
Passed By
9115
Net Change
-7396
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16205
5K → 10K535149+386#16205#15819
10K → 15K176206-30#15819#15849
15K → 20K50617+489#15849#15360
20K → Half5413+41#15360#15319
Half → 25K28627+259#15319#15060
25K → 30K155224-69#15060#15129
30K → 20M31140-1137#15129#16266
20M → 21M11855-1854#16266#18120
21M → 35K11115-1114#18120#19234
35K → 23M11464-1463#19234#20697
23M → 24M0914-914#20697#21611
24M → 40K0752-752#21611#22363
40K → 25.2M0458-458#22363#22821
25.2M → Finish1781-780#22821#23601
TOTALS17199115-7396
📊

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