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BOSTON MARATHON 2023

Caroline Hentzen

Bib: 1501•F

VA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 3%
Gender (Female)
#0 / 11423
Top 0.4%
Division (F18-39)
#0 / 4884
Top 0.9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:10/mi
19:11
↑ 97↓ 3451.5%
10K· 6.21 mi
6:08/mi
38:13
↑ 79↓ 1380.4%
15K· 9.32 mi
6:08/mi
57:15
↑ 67↓ 78
20K· 12.43 mi
6:13/mi
1:16:34
↑ 106↓ 860.1%
Half· 13.11 mi
6:11/mi
1:20:47
↑ 19↓ 370.5%
25K· 15.53 mi
6:16/mi
1:35:59
↑ 66↓ 880.2%
30K· 18.64 mi
6:23/mi
1:55:50
↑ 181↓ 1480.2%
20M
6:17/mi
2:04:22
↑ 64↓ 500.2%
21M
6:33/mi
2:10:55
↑ 106↓ 241.6%
35K· 21.75 mi
6:22/mi
2:15:41
↑ 17↓ 861.7%
23M
6:26/mi
2:23:44
↑ 23↓ 630.6%
24M
6:09/mi
2:29:53
↓ 821.3%
40K· 24.85 mi
6:13/mi
2:35:12
↓ 200.3%
25.2M
6:34/mi
2:37:28
↑ 13↓ 160.2%
Finish· 26.22 mi
5:56/mi
2:43:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:47
Pace6:10 /mi
2nd Half
Distance13.11 mi
Time1:22:44
Pace6:19 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:3219:116:1019:11
6:10
-
10K
6.21 mi10:38:3438:136:0919:02
6:08
-0:02
15K
9.32 mi10:57:3657:156:0919:02
6:08
0:00
20K
12.43 mi11:16:551:16:346:1019:19
6:13
+0:05
Half
13.11 mi11:21:081:20:476:104:13
6:11
-0:02
25K
15.53 mi11:36:201:35:596:1115:12
6:16
+0:05
30K
18.64 mi11:56:111:55:506:1319:51
6:23
+0:07
20M
20.00 mi12:04:432:04:226:138:32
6:17
-0:06
21M
21.00 mi12:11:162:10:556:146:33
6:33
+0:16
35K
21.75 mi12:16:022:15:416:144:46
6:22
-0:11
23M
23.00 mi12:24:052:23:446:158:03
6:26
+0:04
24M
24.00 mi12:30:142:29:536:156:09
6:09
-0:17
40K
24.85 mi12:35:332:35:126:155:19
6:13
+0:04
25.2M
25.20 mi12:37:492:37:286:152:16
6:34
+0:21
Finish
26.22 mi12:43:522:43:316:146:03
5:56
-0:38

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

5:56 /mi

Average Pace

6:14 /mi

Slowest Pace

6:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:42

95% of race

Time at Steady Pace

8:49

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:14 /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 mi10:19:3219:116:1019:11
6:10
#1088
10K
6.21 mi10:38:3438:136:0919:02
6:08
#1089
15K
9.32 mi10:57:3657:156:0919:02
6:08
#1065
20K
12.43 mi11:16:551:16:346:1019:19
6:13
#1059
Half
13.11 mi11:21:081:20:476:104:13
6:11
#1064
25K
15.53 mi11:36:201:35:596:1115:12
6:16
#1066
30K
18.64 mi11:56:111:55:506:1319:51
6:23
#1068
20M
20.00 mi12:04:432:04:226:138:32
6:17
#1030
21M
21.00 mi12:11:162:10:556:146:33
6:33
#992
35K
21.75 mi12:16:022:15:416:144:46
6:22
#1004
23M
23.00 mi12:24:052:23:446:158:03
6:26
#994
24M
24.00 mi12:30:142:29:536:156:09
6:09
#974
40K
24.85 mi12:35:332:35:126:155:19
6:13
#960
25.2M
25.20 mi12:37:492:37:286:152:16
6:34
#934
Finish
26.22 mi12:43:522:43:316:146:03
5:56
#906
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi108857571042(Top 4%)51(Top 0.4%)51(Top 1%)
10K6.21 mi3.10 mi1089-156+156+11113(Top 4%)57(Top 0.5%)57(Top 1%)
15K9.32 mi3.11 mi1065+2455+155+11042(Top 4%)51(Top 0.4%)51(Top 1%)
20K12.43 mi3.11 mi1059+653+253+21109(Top 4%)51(Top 0.4%)51(Top 1%)
Half13.11 mi0.68 mi1064-554-154-11330(Top 5%)53(Top 0.5%)53(Top 1%)
25K15.53 mi2.42 mi1066-253+153+11226(Top 5%)53(Top 0.5%)53(Top 1%)
30K18.64 mi3.11 mi1068-250+350+31185(Top 4%)55(Top 0.5%)55(Top 1%)
20M20.00 mi1.36 mi1030+385050837(Top 3%)41(Top 0.4%)41(Top 0.8%)
21M21.00 mi1.00 mi992+3848+248+2772(Top 3%)42(Top 0.4%)42(Top 0.9%)
35K21.75 mi0.75 mi1004-1249-149-11896(Top 7%)94(Top 0.8%)94(Top 2%)
23M23.00 mi1.25 mi994+1048+148+11215(Top 5%)66(Top 0.6%)66(Top 1%)
24M24.00 mi1.00 mi974+2047+147+1899(Top 3%)47(Top 0.4%)47(Top 1.0%)
40K24.85 mi0.85 mi960+1448-148-1713(Top 3%)38(Top 0.3%)38(Top 0.8%)
25.2M25.20 mi0.35 mi934+2647+147+1651(Top 2%)35(Top 0.3%)35(Top 0.7%)
Finish26.22 mi1.02 mi906+2846+146+1605(Top 2%)30(Top 0.3%)30(Top 0.6%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21story building
+97ft-345ft

Overall

1042

Females

51

F18-39

51

5K→10K

3.1 - 6.2 mi

Top 4%
×5story building
+79ft-138ft

Overall

1113

Females

57

F18-39

57

10K→15K

6.2 - 9.3 mi

Top 4%
×3story building
+67ft-78ft

Overall

1042

Females

51

F18-39

51

15K→20K

9.3 - 12.4 mi

Top 4%
×5story building
+106ft-86ft

Overall

1109

Females

51

F18-39

51

20K→Half

12.4 - 13.1 mi

Top 5%
×2story building
+19ft-37ft

Overall

1330

Females

53

F18-39

53

Half→25K

13.1 - 15.5 mi

Top 5%
×4story building
+66ft-88ft

Overall

1226

Females

53

F18-39

53

25K→30K

15.5 - 18.6 mi

Top 4%
×9story building
+181ft-148ft

Overall

1185

Females

55

F18-39

55

30K→20M

18.6 - 20.0 mi

Top 3%
×5story building
+64ft-50ft

Overall

837

Females

41

F18-39

41

20M→21M

20.0 - 21.0 mi

Top 3%
×8story building
+106ft-24ft

Overall

772

Females

42

F18-39

42

21M→35K

21.0 - 21.8 mi

Top 7%
×7story building
+17ft-86ft

Overall

1896

Females

94

F18-39

94

35K→23M

21.8 - 23.0 mi

Top 5%
×5story building
+23ft-63ft

Overall

1215

Females

66

F18-39

66

23M→24M

23.0 - 24.0 mi

Top 3%
×6story building
+12ft-82ft

Overall

899

Females

47

F18-39

47

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

713

Females

38

F18-39

38

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

651

Females

35

F18-39

35

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2story building
+22ft-21ft

Overall

605

Females

30

F18-39

30

Passing Analysis

Category:
Athletes Passed
399
Passed By
217
Net Change
+182
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1088
5K → 10K5455-1#1088#1089
10K → 15K4420+24#1089#1065
15K → 20K3226+6#1065#1059
20K → Half38-5#1059#1064
Half → 25K2224-2#1064#1066
25K → 30K3840-2#1066#1068
30K → 20M435+38#1068#1030
20M → 21M402+38#1030#992
21M → 35K618-12#992#1004
35K → 23M199+10#1004#994
23M → 24M244+20#994#974
24M → 40K173+14#974#960
40K → 25.2M260+26#960#934
25.2M → Finish313+28#934#906
TOTALS399217+182
📊

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