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BOSTON MARATHON 2023

Christina Thom

Bib: 17608•F

AK

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 48%
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
24:34
Rank: #13325
Start → 5K
24:34 | 7:54/mi
10K· 6.21 mi
49:14
Rank: #13773 (-448)
5K → 10K
24:40 | 7:56/mi
15K· 9.32 mi
1:14:15
Rank: #14117 (-344)
10K → 15K
25:01 | 8:03/mi
20K· 12.43 mi
1:39:44
Rank: #14291 (-174)
15K → 20K
25:29 | 8:12/mi
Half· 13.11 mi
1:45:14
Rank: #14315 (-24)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:05:22
Rank: #14437 (-122)
Half → 25K
20:08 | 8:18/mi
30K· 18.64 mi
2:33:07
Rank: #14916 (-479)
25K → 30K
27:45 | 8:56/mi
20M
2:45:35
Rank: #15096 (-180)
30K → 20M
12:28 | 9:10/mi
21M
2:56:03
Rank: #15418 (-322)
20M → 21M
10:28 | 10:28/mi
35K· 21.75 mi
3:02:28
Rank: #15426 (-8)
21M → 35K
6:25 | 8:35/mi
23M
3:14:21
Rank: #15624 (-198)
35K → 23M
11:53 | 9:29/mi
24M
3:23:28
Rank: #15729 (-105)
23M → 24M
9:07 | 9:07/mi
40K· 24.85 mi
3:31:39
Rank: #15864 (-135)
24M → 40K
8:11 | 9:34/mi
25.2M
3:35:05
Rank: #15886 (-22)
40K → 25.2M
3:26 | 9:57/mi
Finish· 26.22 mi
3:44:10
Rank: #15970 (-84)
25.2M → Finish
9:05 | 8:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:14
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time1:58:56
Pace9:04 /mi
📊Positive Split: 13.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:0124:347:5424:34
7:54
-
10K
6.21 mi11:39:4149:147:5524:40
7:56
+0:02
15K
9.32 mi12:04:421:14:157:5825:01
8:03
+0:07
20K
12.43 mi12:30:111:39:448:0225:29
8:12
+0:09
Half
13.11 mi12:35:411:45:148:025:30
8:04
-0:08
25K
15.53 mi12:55:492:05:228:0420:08
8:18
+0:14
30K
18.64 mi13:23:342:33:078:1327:45
8:56
+0:38
20M
20.00 mi13:36:022:45:358:1712:28
9:10
+0:14
21M
21.00 mi13:46:302:56:038:2310:28
10:28
+1:18
35K
21.75 mi13:52:553:02:288:236:25
8:35
-1:53
23M
23.00 mi14:04:483:14:218:2711:53
9:29
+0:54
24M
24.00 mi14:13:553:23:288:299:07
9:07
-0:22
40K
24.85 mi14:22:063:31:398:318:11
9:34
+0:27
25.2M
25.20 mi14:25:323:35:058:323:26
9:57
+0:23
Finish
26.22 mi14:34:373:44:108:339:05
8:55
-1:02

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

7:54 /mi

Average Pace

8:33 /mi

Slowest Pace

10:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:22

56% of race

Time at Steady Pace

1:04:50

29% of race

Time at Slower Pace

33:58

15% of race

Average Pace: 8:33 /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 mi11:15:0124:347:5424:34
7:54
#13325
10K
6.21 mi11:39:4149:147:5524:40
7:56
#13773
15K
9.32 mi12:04:421:14:157:5825:01
8:03
#14117
20K
12.43 mi12:30:111:39:448:0225:29
8:12
#14291
Half
13.11 mi12:35:411:45:148:025:30
8:04
#14315
25K
15.53 mi12:55:492:05:228:0420:08
8:18
#14437
30K
18.64 mi13:23:342:33:078:1327:45
8:56
#14916
20M
20.00 mi13:36:022:45:358:1712:28
9:10
#15096
21M
21.00 mi13:46:302:56:038:2310:28
10:28
#15418
35K
21.75 mi13:52:553:02:288:236:25
8:35
#15426
23M
23.00 mi14:04:483:14:218:2711:53
9:29
#15624
24M
24.00 mi14:13:553:23:288:299:07
9:07
#15729
40K
24.85 mi14:22:063:31:398:318:11
9:34
#15864
25.2M
25.20 mi14:25:323:35:058:323:26
9:57
#15886
Finish
26.22 mi14:34:373:44:108:339:05
8:55
#15970
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi133253628362814836(Top 56%)4593(Top 40%)4593(Top 94%)
10K6.21 mi3.10 mi13773-4483912-2843912-28414346(Top 54%)4268(Top 37%)4268(Top 87%)
15K9.32 mi3.11 mi14117-3444132-2204132-22014836(Top 56%)4593(Top 40%)4593(Top 94%)
20K12.43 mi3.11 mi14291-1744251-1194251-11914989(Top 56%)4713(Top 41%)4713(Top 96%)
Half13.11 mi0.68 mi14315-244269-184269-1814946(Top 56%)4666(Top 41%)4666(Top 96%)
25K15.53 mi2.42 mi14437-1224367-984367-9814996(Top 56%)4838(Top 42%)4838(Top 99%)
30K18.64 mi3.11 mi14916-4794691-3244691-32416830(Top 63%)5965(Top 52%)5965(Top 122%)
20M20.00 mi1.36 mi15096-1804834-1434834-14317427(Top 65%)6406(Top 56%)6406(Top 131%)
21M21.00 mi1.00 mi15418-3225071-2375071-23719485(Top 73%)7627(Top 67%)7627(Top 156%)
35K21.75 mi0.75 mi15426-85088-175088-1715760(Top 59%)5555(Top 49%)5555(Top 114%)
23M23.00 mi1.25 mi15624-1985240-1525240-15218308(Top 69%)7014(Top 61%)7014(Top 144%)
24M24.00 mi1.00 mi15729-1055319-795319-7917736(Top 67%)6761(Top 59%)6761(Top 138%)
40K24.85 mi0.85 mi15864-1355401-825401-8218579(Top 70%)7259(Top 64%)7259(Top 149%)
25.2M25.20 mi0.35 mi15886-225418-175418-1717213(Top 65%)6539(Top 57%)6539(Top 134%)
Finish26.22 mi1.02 mi15970-845471-535471-5317557(Top 66%)6687(Top 59%)6687(Top 137%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

14836

Females

4593

F18-39

4593

5K→10K

3.1 - 6.2 mi

Top 54%
×5stories
+79ft-138ft

Overall

14346

Females

4268

F18-39

4268

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

14836

Females

4593

F18-39

4593

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

14989

Females

4713

F18-39

4713

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

14946

Females

4666

F18-39

4666

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

14996

Females

4838

F18-39

4838

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

16830

Females

5965

F18-39

5965

30K→20M

18.6 - 20.0 mi

Top 65%
×5stories
+64ft-50ft

Overall

17427

Females

6406

F18-39

6406

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

19485

Females

7627

F18-39

7627

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

15760

Females

5555

F18-39

5555

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

18308

Females

7014

F18-39

7014

23M→24M

23.0 - 24.0 mi

Top 67%
×6stories
+12ft-82ft

Overall

17736

Females

6761

F18-39

6761

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18579

Females

7259

F18-39

7259

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17213

Females

6539

F18-39

6539

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2stories
+22ft-21ft

Overall

17557

Females

6687

F18-39

6687

Passing Analysis

Category:
Athletes Passed
791
Passed By
3436
Net Change
-2645
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13325
5K → 10K131579-448#13325#13773
10K → 15K77421-344#13773#14117
15K → 20K122296-174#14117#14291
20K → Half2145-24#14291#14315
Half → 25K105227-122#14315#14437
25K → 30K59538-479#14437#14916
30K → 20M42222-180#14916#15096
20M → 21M26348-322#15096#15418
21M → 35K4351-8#15418#15426
35K → 23M42240-198#15426#15624
23M → 24M39144-105#15624#15729
24M → 40K31166-135#15729#15864
40K → 25.2M1840-22#15864#15886
25.2M → Finish35119-84#15886#15970
TOTALS7913436-2645
📊

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