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BOSTON MARATHON 2023

Kaitlyn Arnold

Bib: 3980•F

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 16%
Gender (Female)
#0 / 11423
Top 2%
Division (F18-39)
#0 / 4884
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
20:44
Rank: #3446
Start → 5K
20:44 | 6:40/mi
10K· 6.21 mi
41:05
Rank: #3254 (+192)
5K → 10K
20:21 | 6:33/mi
15K· 9.32 mi
1:01:18
Rank: #3030 (+224)
10K → 15K
20:13 | 6:30/mi
20K· 12.43 mi
1:21:33
Rank: #2820 (+210)
15K → 20K
20:15 | 6:31/mi
Half· 13.11 mi
1:25:59
Rank: #2805 (+15)
20K → Half
4:26 | 6:30/mi
25K· 15.53 mi
1:41:38
Rank: #2639 (+166)
Half → 25K
15:39 | 6:27/mi
30K· 18.64 mi
2:02:28
Rank: #2576 (+63)
25K → 30K
20:50 | 6:42/mi
20M
2:11:49
Rank: #2598 (-22)
30K → 20M
9:21 | 6:53/mi
21M
2:19:17
Rank: #2643 (-45)
20M → 21M
7:28 | 7:28/mi
35K· 21.75 mi
2:24:24
Rank: #2680 (-37)
21M → 35K
5:07 | 6:50/mi
23M
2:35:48
Rank: #3519 (-839)
35K → 23M
11:24 | 9:06/mi
24M
2:43:04
Rank: #3677 (-158)
23M → 24M
7:16 | 7:16/mi
40K· 24.85 mi
2:50:36
Rank: #4228 (-551)
24M → 40K
7:32 | 8:49/mi
25.2M
2:53:19
Rank: #4259 (-31)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
3:00:21
Rank: #4272 (-13)
25.2M → Finish
7:02 | 6:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:59
Pace6:34 /mi
2nd Half
Distance13.11 mi
Time1:34:22
Pace7:12 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:1620:446:4020:44
6:40
-
10K
6.21 mi10:42:3741:056:3720:21
6:33
-0:07
15K
9.32 mi11:02:501:01:186:3520:13
6:30
-0:03
20K
12.43 mi11:23:051:21:336:3420:15
6:31
+0:01
Half
13.11 mi11:27:311:25:596:344:26
6:30
-0:01
25K
15.53 mi11:43:101:41:386:3315:39
6:27
-0:03
30K
18.64 mi12:04:002:02:286:3420:50
6:42
+0:15
20M
20.00 mi12:13:212:11:496:359:21
6:53
+0:11
21M
21.00 mi12:20:492:19:176:387:28
7:28
+0:35
35K
21.75 mi12:25:562:24:246:385:07
6:50
-0:38
23M
23.00 mi12:37:202:35:486:4611:24
9:06
+2:16
24M
24.00 mi12:44:362:43:046:487:16
7:16
-1:50
40K
24.85 mi12:52:082:50:366:527:32
8:49
+1:33
25.2M
25.20 mi12:54:512:53:196:532:43
7:53
-0:56
Finish
26.22 mi13:01:533:00:216:537:02
6:54
-0:59

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

6:27 /mi

Average Pace

6:53 /mi

Slowest Pace

9:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:23:58

80% of race

Time at Slower Pace

36:23

20% of race

Average Pace: 6:53 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:22:1620:446:4020:44
6:40
#3446
10K
6.21 mi10:42:3741:056:3720:21
6:33
#3254
15K
9.32 mi11:02:501:01:186:3520:13
6:30
#3030
20K
12.43 mi11:23:051:21:336:3420:15
6:31
#2820
Half
13.11 mi11:27:311:25:596:344:26
6:30
#2805
25K
15.53 mi11:43:101:41:386:3315:39
6:27
#2639
30K
18.64 mi12:04:002:02:286:3420:50
6:42
#2576
20M
20.00 mi12:13:212:11:496:359:21
6:53
#2598
21M
21.00 mi12:20:492:19:176:387:28
7:28
#2643
35K
21.75 mi12:25:562:24:246:385:07
6:50
#2680
23M
23.00 mi12:37:202:35:486:4611:24
9:06
#3519
24M
24.00 mi12:44:362:43:046:487:16
7:16
#3677
40K
24.85 mi12:52:082:50:366:527:32
8:49
#4228
25.2M
25.20 mi12:54:512:53:196:532:43
7:53
#4259
Finish
26.22 mi13:01:533:00:216:537:02
6:54
#4272
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi34461931932690(Top 10%)119(Top 1%)119(Top 2%)
10K6.21 mi3.10 mi3254+192166+27166+273145(Top 12%)143(Top 1%)143(Top 3%)
15K9.32 mi3.11 mi3030+224139+27139+272690(Top 10%)119(Top 1%)119(Top 2%)
20K12.43 mi3.11 mi2820+210124+15124+152395(Top 9%)100(Top 0.9%)100(Top 2%)
Half13.11 mi0.68 mi2805+15119+5119+52859(Top 11%)122(Top 1%)122(Top 2%)
25K15.53 mi2.42 mi2639+166114+5114+51985(Top 7%)83(Top 0.7%)83(Top 2%)
30K18.64 mi3.11 mi2576+63113+1113+12437(Top 9%)116(Top 1%)116(Top 2%)
20M20.00 mi1.36 mi2598-22115-2115-23332(Top 13%)212(Top 2%)212(Top 4%)
21M21.00 mi1.00 mi2643-45116-1116-14442(Top 17%)384(Top 3%)384(Top 8%)
35K21.75 mi0.75 mi2680-37117-1117-14486(Top 17%)382(Top 3%)382(Top 8%)
23M23.00 mi1.25 mi3519-839190-73190-7316563(Top 62%)6052(Top 53%)6052(Top 124%)
24M24.00 mi1.00 mi3677-158211-21211-216159(Top 23%)951(Top 8%)951(Top 19%)
40K24.85 mi0.85 mi4228-551271-60271-6015132(Top 57%)5362(Top 47%)5362(Top 110%)
25.2M25.20 mi0.35 mi4259-31279-8279-85848(Top 22%)979(Top 9%)979(Top 20%)
Finish26.22 mi1.02 mi4272-13283-4283-44659(Top 18%)611(Top 5%)611(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2690

Females

119

F18-39

119

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3145

Females

143

F18-39

143

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2690

Females

119

F18-39

119

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2395

Females

100

F18-39

100

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

2859

Females

122

F18-39

122

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1985

Females

83

F18-39

83

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2437

Females

116

F18-39

116

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3332

Females

212

F18-39

212

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4442

Females

384

F18-39

384

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4486

Females

382

F18-39

382

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

16563

Females

6052

F18-39

6052

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

6159

Females

951

F18-39

951

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15132

Females

5362

F18-39

5362

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5848

Females

979

F18-39

979

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4659

Females

611

F18-39

611

Passing Analysis

Category:
Athletes Passed
1185
Passed By
2011
Net Change
-826
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3446
5K → 10K28189+192#3446#3254
10K → 15K25127+224#3254#3030
15K → 20K22111+210#3030#2820
20K → Half249+15#2820#2805
Half → 25K1693+166#2805#2639
25K → 30K10542+63#2639#2576
30K → 20M3153-22#2576#2598
20M → 21M1863-45#2598#2643
21M → 35K1552-37#2643#2680
35K → 23M3842-839#2680#3519
23M → 24M10168-158#3519#3677
24M → 40K5556-551#3677#4228
40K → 25.2M1041-31#4228#4259
25.2M → Finish4255-13#4259#4272
TOTALS11852011-826
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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