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BOSTON MARATHON 2023

Kristina Von Castel

Bib: 22414•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:48
Rank: #18412
Start → 5K
8:38/mi
26:48 split
10K· 6.21 mi
54:22
Rank: #19408 (-996)
5K → 10K
8:52/mi
27:34 split
15K· 9.32 mi
1:22:14
Rank: #19725 (-317)
10K → 15K
8:58/mi
27:52 split
20K· 12.43 mi
1:52:50
Rank: #20688 (-963)
15K → 20K
9:51/mi
30:36 split
Half· 13.11 mi
1:59:05
Rank: #20709 (-21)
20K → Half
9:10/mi
6:15 split
25K· 15.53 mi
2:22:08
Rank: #20764 (-55)
Half → 25K
9:30/mi
23:03 split
30K· 18.64 mi
2:56:27
Rank: #21371 (-607)
25K → 30K
11:03/mi
34:19 split
20M
3:09:52
Rank: #21255 (+116)
30K → 20M
9:52/mi
13:25 split
21M
3:20:26
Rank: #21178 (+77)
20M → 21M
10:34/mi
10:34 split
35K· 21.75 mi
3:27:54
Rank: #21166 (+12)
21M → 35K
9:59/mi
7:28 split
23M
3:40:17
Rank: #21059 (+107)
35K → 23M
9:53/mi
12:23 split
24M
3:49:58
Rank: #20990 (+69)
23M → 24M
9:41/mi
9:41 split
40K· 24.85 mi
3:58:58
Rank: #20994 (-4)
24M → 40K
10:32/mi
9:00 split
25.2M
4:02:41
Rank: #20972 (+22)
40K → 25.2M
10:47/mi
3:43 split
Finish· 26.22 mi
4:13:13
Rank: #21054 (-82)
25.2M → Finish
10:20/mi
10:32 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:05
Pace9:05 /mi
2nd Half
Distance13.11 mi
Time2:14:08
Pace10:14 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3926:488:3826:48
8:38
-
10K
6.21 mi11:48:1354:228:4527:34
8:52
+0:14
15K
9.32 mi12:16:051:22:148:4927:52
8:58
+0:06
20K
12.43 mi12:46:411:52:509:0530:36
9:51
+0:53
Half
13.11 mi12:52:561:59:059:056:15
9:10
-0:41
25K
15.53 mi13:15:592:22:089:0923:03
9:30
+0:20
30K
18.64 mi13:50:182:56:279:2834:19
11:03
+1:33
20M
20.00 mi14:03:433:09:529:3013:25
9:52
-1:11
21M
21.00 mi14:14:173:20:269:3310:34
10:34
+0:42
35K
21.75 mi14:21:453:27:549:347:28
9:59
-0:35
23M
23.00 mi14:34:083:40:179:3512:23
9:53
-0:06
24M
24.00 mi14:43:493:49:589:359:41
9:41
-0:12
40K
24.85 mi14:52:493:58:589:379:00
10:32
+0:51
25.2M
25.20 mi14:56:324:02:419:383:43
10:47
+0:15
Finish
26.22 mi15:07:044:13:139:4010:32
10:20
-0:27

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

8:38 /mi

Average Pace

9:40 /mi

Slowest Pace

11:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:32

44% of race

Time at Steady Pace

1:13:33

29% of race

Time at Slower Pace

1:08:08

27% of race

Average Pace: 9:39 /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 mi11:20:3926:488:3826:48
8:38
#18412
10K
6.21 mi11:48:1354:228:4527:34
8:52
#19408
15K
9.32 mi12:16:051:22:148:4927:52
8:58
#19725
20K
12.43 mi12:46:411:52:509:0530:36
9:51
#20688
Half
13.11 mi12:52:561:59:059:056:15
9:10
#20709
25K
15.53 mi13:15:592:22:089:0923:03
9:30
#20764
30K
18.64 mi13:50:182:56:279:2834:19
11:03
#21371
20M
20.00 mi14:03:433:09:529:3013:25
9:52
#21255
21M
21.00 mi14:14:173:20:269:3310:34
10:34
#21178
35K
21.75 mi14:21:453:27:549:347:28
9:59
#21166
23M
23.00 mi14:34:083:40:179:3512:23
9:53
#21059
24M
24.00 mi14:43:493:49:589:359:41
9:41
#20990
40K
24.85 mi14:52:493:58:589:379:00
10:32
#20994
25.2M
25.20 mi14:56:324:02:419:383:43
10:47
#20972
Finish
26.22 mi15:07:044:13:139:4010:32
10:20
#21054
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi184126824682420372(Top 77%)7888(Top 69%)7888(Top 434%)
10K6.21 mi3.10 mi19408-9967406-5827406-58220317(Top 76%)7881(Top 69%)7881(Top 434%)
15K9.32 mi3.11 mi19725-3177578-1727578-17220372(Top 77%)7888(Top 69%)7888(Top 434%)
20K12.43 mi3.11 mi20688-9638098-5208098-52022522(Top 85%)9092(Top 80%)9092(Top 500%)
Half13.11 mi0.68 mi20709-218112-148112-1421062(Top 79%)8286(Top 73%)8286(Top 456%)
25K15.53 mi2.42 mi20764-558133-218133-2120861(Top 78%)8197(Top 72%)8197(Top 451%)
30K18.64 mi3.11 mi21371-6078488-3558488-35523162(Top 87%)9548(Top 84%)9548(Top 525%)
20M20.00 mi1.36 mi21255+1168447+418447+4120115(Top 76%)7931(Top 69%)7931(Top 436%)
21M21.00 mi1.00 mi21178+778412+358412+3519815(Top 74%)7829(Top 69%)7829(Top 431%)
35K21.75 mi0.75 mi21166+128413-18413-121223(Top 80%)8611(Top 75%)8611(Top 474%)
23M23.00 mi1.25 mi21059+1078365+488365+4819685(Top 74%)7792(Top 68%)7792(Top 429%)
24M24.00 mi1.00 mi20990+698339+268339+2619853(Top 75%)7896(Top 69%)7896(Top 435%)
40K24.85 mi0.85 mi20994-48350-118350-1121284(Top 80%)8765(Top 77%)8765(Top 482%)
25.2M25.20 mi0.35 mi20972+228346+48346+419956(Top 75%)8045(Top 70%)8045(Top 443%)
Finish26.22 mi1.02 mi21054-828397-518397-5122653(Top 85%)9475(Top 83%)9475(Top 521%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

20372

Females

7888

F45-49

7888

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

20317

Females

7881

F45-49

7881

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

20372

Females

7888

F45-49

7888

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

22522

Females

9092

F45-49

9092

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

21062

Females

8286

F45-49

8286

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

20861

Females

8197

F45-49

8197

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

23162

Females

9548

F45-49

9548

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

20115

Females

7931

F45-49

7931

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

19815

Females

7829

F45-49

7829

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21223

Females

8611

F45-49

8611

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19685

Females

7792

F45-49

7792

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

19853

Females

7896

F45-49

7896

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21284

Females

8765

F45-49

8765

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

19956

Females

8045

F45-49

8045

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

22653

Females

9475

F45-49

9475

Passing Analysis

Category:
Athletes Passed
883
Passed By
3525
Net Change
-2642
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18412
5K → 10K681064-996#18412#19408
10K → 15K79396-317#19408#19725
15K → 20K30993-963#19725#20688
20K → Half2041-21#20688#20709
Half → 25K89144-55#20709#20764
25K → 30K26633-607#20764#21371
30K → 20M13620+116#21371#21255
20M → 21M10326+77#21255#21178
21M → 35K4432+12#21178#21166
35K → 23M11710+107#21166#21059
23M → 24M8213+69#21059#20990
24M → 40K2933-4#20990#20994
40K → 25.2M3816+22#20994#20972
25.2M → Finish22104-82#20972#21054
TOTALS8833525-2642
📊

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