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BOSTON MARATHON 2023

Jennifer Krieter

Bib: 20506•F

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
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
9:50/mi
30:32
↑ 97↓ 3451.5%
10K· 6.21 mi
10:07/mi
1:01:58
↑ 79↓ 1380.4%
15K· 9.32 mi
10:54/mi
1:35:51
↑ 67↓ 78
20K· 12.43 mi
10:16/mi
2:07:44
↑ 106↓ 860.1%
Half· 13.11 mi
10:33/mi
2:14:56
↑ 19↓ 370.5%
25K· 15.53 mi
10:34/mi
2:40:33
↑ 66↓ 880.2%
30K· 18.64 mi
11:44/mi
3:16:59
↑ 181↓ 1480.2%
20M
11:27/mi
3:32:33
↑ 64↓ 500.2%
21M
12:55/mi
3:45:28
↑ 106↓ 241.6%
35K· 21.75 mi
12:08/mi
3:54:33
↑ 17↓ 861.7%
23M
11:28/mi
4:08:54
↑ 23↓ 630.6%
24M
11:24/mi
4:20:18
↓ 821.3%
40K· 24.85 mi
11:37/mi
4:30:14
↓ 200.3%
25.2M
12:48/mi
4:34:39
↑ 13↓ 160.2%
Finish· 26.22 mi
10:43/mi
4:45:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:56
Pace10:18 /mi
2nd Half
Distance13.11 mi
Time2:30:38
Pace11:29 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2630:329:5030:32
9:50
-
10K
6.21 mi11:54:521:01:589:5831:26
10:07
+0:17
15K
9.32 mi12:28:451:35:5110:1733:53
10:54
+0:47
20K
12.43 mi13:00:382:07:4410:1731:53
10:16
-0:38
Half
13.11 mi13:07:502:14:5610:187:12
10:33
+0:17
25K
15.53 mi13:33:272:40:3310:2025:37
10:34
+0:01
30K
18.64 mi14:09:533:16:5910:3436:26
11:44
+1:10
20M
20.00 mi14:25:273:32:3310:3815:34
11:27
-0:17
21M
21.00 mi14:38:223:45:2810:4412:55
12:55
+1:28
35K
21.75 mi14:47:273:54:3310:479:05
12:08
-0:47
23M
23.00 mi15:01:484:08:5410:4914:21
11:28
-0:40
24M
24.00 mi15:13:124:20:1810:5111:24
11:24
-0:04
40K
24.85 mi15:23:084:30:1410:529:56
11:37
+0:13
25.2M
25.20 mi15:27:334:34:3910:544:25
12:48
+1:11
Finish
26.22 mi15:38:284:45:3410:5410:55
10:43
-2:05

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

9:50 /mi

Average Pace

10:54 /mi

Slowest Pace

12:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:28

60% of race

Time at Steady Pace

1:27:41

31% of race

Time at Slower Pace

26:25

9% of race

Average Pace: 10:53 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:23:2630:329:5030:32
9:50
#23005
10K
6.21 mi11:54:521:01:589:5831:26
10:07
#23565
15K
9.32 mi12:28:451:35:5110:1733:53
10:54
#24185
20K
12.43 mi13:00:382:07:4410:1731:53
10:16
#23977
Half
13.11 mi13:07:502:14:5610:187:12
10:33
#23985
25K
15.53 mi13:33:272:40:3310:2025:37
10:34
#23843
30K
18.64 mi14:09:533:16:5910:3436:26
11:44
#23936
20M
20.00 mi14:25:273:32:3310:3815:34
11:27
#23906
21M
21.00 mi14:38:223:45:2810:4412:55
12:55
#23926
35K
21.75 mi14:47:273:54:3310:479:05
12:08
#23984
23M
23.00 mi15:01:484:08:5410:4914:21
11:28
#23952
24M
24.00 mi15:13:124:20:1810:5111:24
11:24
#23945
40K
24.85 mi15:23:084:30:1410:529:56
11:37
#23914
25.2M
25.20 mi15:27:334:34:3910:544:25
12:48
#23917
Finish
26.22 mi15:38:284:45:3410:5410:55
10:43
#23908
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi230059393939325074(Top 94%)10503(Top 92%)10503(Top 559%)
10K6.21 mi3.10 mi23565-5609657-2649657-26423953(Top 90%)9862(Top 86%)9862(Top 525%)
15K9.32 mi3.11 mi24185-6209993-3369993-33625074(Top 94%)10503(Top 92%)10503(Top 559%)
20K12.43 mi3.11 mi23977+2089877+1169877+11623409(Top 88%)9569(Top 84%)9569(Top 510%)
Half13.11 mi0.68 mi23985-89886-99886-924307(Top 91%)10100(Top 88%)10100(Top 538%)
25K15.53 mi2.42 mi23843+1429815+719815+7123301(Top 88%)9558(Top 84%)9558(Top 509%)
30K18.64 mi3.11 mi23936-939881-669881-6624169(Top 91%)10104(Top 88%)10104(Top 538%)
20M20.00 mi1.36 mi23906+309869+129869+1223464(Top 88%)9766(Top 85%)9766(Top 520%)
21M21.00 mi1.00 mi23926-209896-279896-2723994(Top 90%)10082(Top 88%)10082(Top 537%)
35K21.75 mi0.75 mi23984-589937-419937-4124825(Top 93%)10569(Top 93%)10569(Top 563%)
23M23.00 mi1.25 mi23952+329926+119926+1123195(Top 87%)9693(Top 85%)9693(Top 516%)
24M24.00 mi1.00 mi23945+79932-69932-623745(Top 89%)10028(Top 88%)10028(Top 534%)
40K24.85 mi0.85 mi23914+319927+59927+523400(Top 88%)9882(Top 87%)9882(Top 526%)
25.2M25.20 mi0.35 mi23917-39932-59932-523736(Top 89%)10051(Top 88%)10051(Top 535%)
Finish26.22 mi1.02 mi23908+99930+29930+223451(Top 88%)9879(Top 86%)9879(Top 526%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

25074

Females

10503

F40-44

10503

5K→10K

3.1 - 6.2 mi

Top 90%
×5story building
+79ft-138ft

Overall

23953

Females

9862

F40-44

9862

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

25074

Females

10503

F40-44

10503

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

23409

Females

9569

F40-44

9569

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

24307

Females

10100

F40-44

10100

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

23301

Females

9558

F40-44

9558

25K→30K

15.5 - 18.6 mi

Top 91%
×9story building
+181ft-148ft

Overall

24169

Females

10104

F40-44

10104

30K→20M

18.6 - 20.0 mi

Top 88%
×5story building
+64ft-50ft

Overall

23464

Females

9766

F40-44

9766

20M→21M

20.0 - 21.0 mi

Top 90%
×8story building
+106ft-24ft

Overall

23994

Females

10082

F40-44

10082

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

24825

Females

10569

F40-44

10569

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

23195

Females

9693

F40-44

9693

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

23745

Females

10028

F40-44

10028

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23400

Females

9882

F40-44

9882

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

23736

Females

10051

F40-44

10051

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

23451

Females

9879

F40-44

9879

Passing Analysis

Category:
Athletes Passed
820
Passed By
1723
Net Change
-903
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23005
5K → 10K50610-560#23005#23565
10K → 15K10630-620#23565#24185
15K → 20K23325+208#24185#23977
20K → Half2432-8#23977#23985
Half → 25K16220+142#23985#23843
25K → 30K74167-93#23843#23936
30K → 20M5626+30#23936#23906
20M → 21M3858-20#23906#23926
21M → 35K1270-58#23926#23984
35K → 23M5321+32#23984#23952
23M → 24M2417+7#23952#23945
24M → 40K4514+31#23945#23914
40K → 25.2M1013-3#23914#23917
25.2M → Finish2920+9#23917#23908
TOTALS8201723-903
📊

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