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BOSTON MARATHON 2023

Caroline Kessler

Bib: 25914•F

MA

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
28:32
Rank: #21175
Start → 5K
9:11/mi
28:32 split
10K· 6.21 mi
56:10
Rank: #20803 (+372)
5K → 10K
8:54/mi
27:38 split
15K· 9.32 mi
1:24:31
Rank: #20886 (-83)
10K → 15K
9:07/mi
28:21 split
20K· 12.43 mi
1:52:33
Rank: #20609 (+277)
15K → 20K
9:01/mi
28:02 split
Half· 13.11 mi
1:58:40
Rank: #20584 (+25)
20K → Half
8:58/mi
6:07 split
25K· 15.53 mi
2:21:10
Rank: #20503 (+81)
Half → 25K
9:17/mi
22:30 split
30K· 18.64 mi
2:49:27
Rank: #20010 (+493)
25K → 30K
9:06/mi
28:17 split
20M
3:01:46
Rank: #19758 (+252)
30K → 20M
9:04/mi
12:19 split
21M
3:11:31
Rank: #19597 (+161)
20M → 21M
9:45/mi
9:45 split
35K· 21.75 mi
3:17:59
Rank: #19484 (+113)
21M → 35K
8:39/mi
6:28 split
23M
3:29:18
Rank: #19299 (+185)
35K → 23M
9:02/mi
11:19 split
24M
3:38:16
Rank: #19212 (+87)
23M → 24M
8:58/mi
8:58 split
40K· 24.85 mi
3:46:03
Rank: #19119 (+93)
24M → 40K
9:06/mi
7:47 split
25.2M
3:49:28
Rank: #19087 (+32)
40K → 25.2M
9:54/mi
3:25 split
Finish· 26.22 mi
3:58:24
Rank: #19020 (+67)
25.2M → Finish
8:46/mi
8:56 split

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:58:40
Pace9:03 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:59:44
Pace9:08 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:5928:329:1128:32
9:11
-
10K
6.21 mi12:13:3756:109:0227:38
8:54
-0:17
15K
9.32 mi12:41:581:24:319:0428:21
9:07
+0:13
20K
12.43 mi13:10:001:52:339:0328:02
9:01
-0:06
Half
13.11 mi13:16:071:58:409:036:07
8:58
-0:03
25K
15.53 mi13:38:372:21:109:0522:30
9:17
+0:19
30K
18.64 mi14:06:542:49:279:0528:17
9:06
-0:11
20M
20.00 mi14:19:133:01:469:0512:19
9:04
-0:02
21M
21.00 mi14:28:583:11:319:079:45
9:45
+0:41
35K
21.75 mi14:35:263:17:599:066:28
8:39
-1:06
23M
23.00 mi14:46:453:29:189:0611:19
9:02
+0:23
24M
24.00 mi14:55:433:38:169:068:58
8:58
-0:04
40K
24.85 mi15:03:303:46:039:067:47
9:06
+0:08
25.2M
25.20 mi15:06:553:49:289:063:25
9:54
+0:48
Finish
26.22 mi15:15:513:58:249:068:56
8:46
-1:08

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

8:39 /mi

Average Pace

9:06 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:45:14

94% of race

Time at Steady Pace

13:10

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:06 /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 mi11:45:5928:329:1128:32
9:11
#21175
10K
6.21 mi12:13:3756:109:0227:38
8:54
#20803
15K
9.32 mi12:41:581:24:319:0428:21
9:07
#20886
20K
12.43 mi13:10:001:52:339:0328:02
9:01
#20609
Half
13.11 mi13:16:071:58:409:036:07
8:58
#20584
25K
15.53 mi13:38:372:21:109:0522:30
9:17
#20503
30K
18.64 mi14:06:542:49:279:0528:17
9:06
#20010
20M
20.00 mi14:19:133:01:469:0512:19
9:04
#19758
21M
21.00 mi14:28:583:11:319:079:45
9:45
#19597
35K
21.75 mi14:35:263:17:599:066:28
8:39
#19484
23M
23.00 mi14:46:453:29:189:0611:19
9:02
#19299
24M
24.00 mi14:55:433:38:169:068:58
8:58
#19212
40K
24.85 mi15:03:303:46:039:067:47
9:06
#19119
25.2M
25.20 mi15:06:553:49:289:063:25
9:54
#19087
Finish
26.22 mi15:15:513:58:249:068:56
8:46
#19020
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi211758462846221043(Top 79%)8257(Top 72%)8257(Top 169%)
10K6.21 mi3.10 mi20803+3728202+2608202+26020403(Top 77%)7924(Top 69%)7924(Top 162%)
15K9.32 mi3.11 mi20886-838221-198221-1921043(Top 79%)8257(Top 72%)8257(Top 169%)
20K12.43 mi3.11 mi20609+2778056+1658056+16519813(Top 74%)7564(Top 66%)7564(Top 155%)
Half13.11 mi0.68 mi20584+258039+178039+1720314(Top 76%)7849(Top 69%)7849(Top 161%)
25K15.53 mi2.42 mi20503+817984+557984+5520135(Top 76%)7774(Top 68%)7774(Top 159%)
30K18.64 mi3.11 mi20010+4937737+2477737+24717717(Top 67%)6477(Top 57%)6477(Top 133%)
20M20.00 mi1.36 mi19758+2527595+1427595+14216889(Top 63%)6093(Top 53%)6093(Top 125%)
21M21.00 mi1.00 mi19597+1617515+807515+8017075(Top 64%)6238(Top 55%)6238(Top 128%)
35K21.75 mi0.75 mi19484+1137453+627453+6216174(Top 61%)5813(Top 51%)5813(Top 119%)
23M23.00 mi1.25 mi19299+1857352+1017352+10116282(Top 61%)5909(Top 52%)5909(Top 121%)
24M24.00 mi1.00 mi19212+877312+407312+4017112(Top 64%)6429(Top 56%)6429(Top 132%)
40K24.85 mi0.85 mi19119+937268+447268+4416679(Top 63%)6232(Top 55%)6232(Top 128%)
25.2M25.20 mi0.35 mi19087+327254+147254+1417089(Top 64%)6481(Top 57%)6481(Top 133%)
Finish26.22 mi1.02 mi19020+677224+307224+3016888(Top 63%)6320(Top 55%)6320(Top 129%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

21043

Females

8257

F18-39

8257

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

20403

Females

7924

F18-39

7924

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

21043

Females

8257

F18-39

8257

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

19813

Females

7564

F18-39

7564

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

20314

Females

7849

F18-39

7849

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

20135

Females

7774

F18-39

7774

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17717

Females

6477

F18-39

6477

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16889

Females

6093

F18-39

6093

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

17075

Females

6238

F18-39

6238

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

16174

Females

5813

F18-39

5813

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

16282

Females

5909

F18-39

5909

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

17112

Females

6429

F18-39

6429

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16679

Females

6232

F18-39

6232

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

17089

Females

6481

F18-39

6481

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

16888

Females

6320

F18-39

6320

Passing Analysis

Category:
Athletes Passed
2735
Passed By
580
Net Change
+2155
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21175
5K → 10K507135+372#21175#20803
10K → 15K142225-83#20803#20886
15K → 20K32649+277#20886#20609
20K → Half3813+25#20609#20584
Half → 25K14665+81#20584#20503
25K → 30K4985+493#20503#20010
30K → 20M2520+252#20010#19758
20M → 21M17312+161#19758#19597
21M → 35K1218+113#19597#19484
35K → 23M1927+185#19484#19299
23M → 24M10720+87#19299#19212
24M → 40K10815+93#19212#19119
40K → 25.2M386+32#19119#19087
25.2M → Finish8720+67#19087#19020
TOTALS2735580+2155
📊

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