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BOSTON MARATHON 2023

Sara Krenski

MO

Bib: 14315 F

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 46%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:43/mi
23:59
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:41/mi
47:52
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:49/mi
1:12:10
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:16/mi
1:37:50
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:18/mi
1:43:30
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:21/mi
2:03:45
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:47/mi
2:31:03
↑ 181↓ 1480.2%
138 ft elev
20M
8:59/mi
2:43:16
↑ 64↓ 500.2%
148 ft elev
21M
9:55/mi
2:53:11
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:51/mi
2:59:48
↑ 17↓ 861.7%
156 ft elev
23M
9:17/mi
3:11:25
↑ 23↓ 630.6%
116 ft elev
24M
8:52/mi
3:20:17
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:58/mi
3:28:48
↓ 200.3%
20 ft elev
25.2M
10:15/mi
3:32:20
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
10:15/mi
3:42:47
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:30
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:59:17
Pace9:06 /mi
📊Positive Split: 15.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2323:597:4323:59
7:43
-
10K
6.21 mi11:17:1647:527:4223:53
7:41
-0:02
15K
9.32 mi11:41:341:12:107:4524:18
7:49
+0:08
20K
12.43 mi12:07:141:37:507:5225:40
8:16
+0:27
Half
13.11 mi12:12:541:43:307:545:40
8:18
+0:02
25K
15.53 mi12:33:092:03:457:5820:15
8:21
+0:03
30K
18.64 mi13:00:272:31:038:0627:18
8:47
+0:26
20M
20.00 mi13:12:402:43:168:1012:13
8:59
+0:12
21M
21.00 mi13:22:352:53:118:159:55
9:55
+0:56
35K
21.75 mi13:29:122:59:488:166:37
8:51
-1:04
23M
23.00 mi13:40:493:11:258:1911:37
9:17
+0:26
24M
24.00 mi13:49:413:20:178:218:52
8:52
-0:25
40K
24.85 mi13:58:123:28:488:248:31
9:58
+1:06
25.2M
25.20 mi14:01:443:32:208:263:32
10:15
+0:17
Finish
26.22 mi14:12:113:42:478:3010:27
10:15
0:00

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

7:41 /mi

Average Pace

8:30 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:45

56% of race

Time at Steady Pace

55:00

25% of race

Time at Slower Pace

44:02

20% of race

Average Pace: 8:30 /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 mi10:53:2323:597:4323:59
7:43
#11651
10K
6.21 mi11:17:1647:527:4223:53
7:41
#11857
15K
9.32 mi11:41:341:12:107:4524:18
7:49
#12181
20K
12.43 mi12:07:141:37:507:5225:40
8:16
#13068
Half
13.11 mi12:12:541:43:307:545:40
8:18
#13282
25K
15.53 mi12:33:092:03:457:5820:15
8:21
#13620
30K
18.64 mi13:00:272:31:038:0627:18
8:47
#14134
20M
20.00 mi13:12:402:43:168:1012:13
8:59
#14309
21M
21.00 mi13:22:352:53:118:159:55
9:55
#14521
35K
21.75 mi13:29:122:59:488:166:37
8:51
#14624
23M
23.00 mi13:40:493:11:258:1911:37
9:17
#14819
24M
24.00 mi13:49:413:20:178:218:52
8:52
#14880
40K
24.85 mi13:58:123:28:488:248:31
9:58
#15120
25.2M
25.20 mi14:01:443:32:208:263:32
10:15
#15175
Finish
26.22 mi14:12:113:42:478:3010:27
10:15
#15638
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi116512675267512928(Top 49%)3435(Top 30%)3435(Top 70%)
10K6.21 mi3.10 mi11857-2062797-1222797-12212143(Top 46%)2956(Top 26%)2956(Top 61%)
15K9.32 mi3.11 mi12181-3242996-1992996-19912928(Top 49%)3435(Top 30%)3435(Top 70%)
20K12.43 mi3.11 mi13068-8873524-5283524-52815371(Top 58%)4949(Top 43%)4949(Top 101%)
Half13.11 mi0.68 mi13282-2143656-1323656-13216536(Top 62%)5619(Top 49%)5619(Top 115%)
25K15.53 mi2.42 mi13620-3383879-2233879-22315293(Top 57%)5017(Top 44%)5017(Top 103%)
30K18.64 mi3.11 mi14134-5144223-3444223-34415976(Top 60%)5481(Top 48%)5481(Top 112%)
20M20.00 mi1.36 mi14309-1754366-1434366-14316492(Top 62%)5857(Top 51%)5857(Top 120%)
21M21.00 mi1.00 mi14521-2124507-1414507-14117718(Top 67%)6587(Top 58%)6587(Top 135%)
35K21.75 mi0.75 mi14624-1034579-724579-7217185(Top 65%)6370(Top 56%)6370(Top 130%)
23M23.00 mi1.25 mi14819-1954733-1544733-15417415(Top 65%)6510(Top 57%)6510(Top 133%)
24M24.00 mi1.00 mi14880-614782-494782-4916600(Top 62%)6130(Top 54%)6130(Top 126%)
40K24.85 mi0.85 mi15120-2404948-1664948-16619864(Top 75%)7981(Top 70%)7981(Top 163%)
25.2M25.20 mi0.35 mi15175-554994-464994-4618285(Top 69%)7094(Top 62%)7094(Top 145%)
Finish26.22 mi1.02 mi15638-4635279-2855279-28522427(Top 84%)9341(Top 82%)9341(Top 191%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

12928

Females

3435

F18-39

3435

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12143

Females

2956

F18-39

2956

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

12928

Females

3435

F18-39

3435

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

15371

Females

4949

F18-39

4949

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

16536

Females

5619

F18-39

5619

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15293

Females

5017

F18-39

5017

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

15976

Females

5481

F18-39

5481

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

16492

Females

5857

F18-39

5857

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

17718

Females

6587

F18-39

6587

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

17185

Females

6370

F18-39

6370

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

17415

Females

6510

F18-39

6510

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

16600

Females

6130

F18-39

6130

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19864

Females

7981

F18-39

7981

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18285

Females

7094

F18-39

7094

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

22427

Females

9341

F18-39

9341

Passing Analysis

Category:
Athletes Passed
709
Passed By
4696
Net Change
-3987
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11651
5K → 10K217423-206#11651#11857
10K → 15K98422-324#11857#12181
15K → 20K32919-887#12181#13068
20K → Half4218-214#13068#13282
Half → 25K63401-338#13282#13620
25K → 30K66580-514#13620#14134
30K → 20M46221-175#14134#14309
20M → 21M29241-212#14309#14521
21M → 35K19122-103#14521#14624
35K → 23M33228-195#14624#14819
23M → 24M47108-61#14819#14880
24M → 40K19259-240#14880#15120
40K → 25.2M2580-55#15120#15175
25.2M → Finish11474-463#15175#15638
TOTALS7094696-3987
📊

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