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BOSTON MARATHON 2023

Krystle Kreway

Bib: 15489•F

AB

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 40%
Gender (Female)
#0 / 11423
Top 21%
Division (F18-39)
#0 / 4884
Top 36%
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
7:41/mi
23:51
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
47:54
↑ 79↓ 1380.4%
15K· 9.32 mi
7:44/mi
1:11:56
↑ 67↓ 78
20K· 12.43 mi
7:49/mi
1:36:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:41:29
↑ 19↓ 370.5%
25K· 15.53 mi
7:48/mi
2:00:24
↑ 66↓ 880.2%
30K· 18.64 mi
8:00/mi
2:25:16
↑ 181↓ 1480.2%
20M
7:56/mi
2:36:03
↑ 64↓ 500.2%
21M
8:16/mi
2:44:19
↑ 106↓ 241.6%
35K· 21.75 mi
7:38/mi
2:50:02
↑ 17↓ 861.7%
23M
7:53/mi
2:59:54
↑ 23↓ 630.6%
24M
7:45/mi
3:07:39
↓ 821.3%
40K· 24.85 mi
7:47/mi
3:14:18
↓ 200.3%
25.2M
8:19/mi
3:17:10
↑ 13↓ 160.2%
Finish· 26.22 mi
7:23/mi
3:24:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:29
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:43:12
Pace7:52 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:4023:517:4123:51
7:41
-
10K
6.21 mi11:17:4347:547:4324:03
7:44
+0:03
15K
9.32 mi11:41:451:11:567:4324:02
7:44
0:00
20K
12.43 mi12:06:021:36:137:4524:17
7:49
+0:05
Half
13.11 mi12:11:181:41:297:445:16
7:43
-0:06
25K
15.53 mi12:30:132:00:247:4518:55
7:48
+0:05
30K
18.64 mi12:55:052:25:167:4824:52
8:00
+0:12
20M
20.00 mi13:05:522:36:037:4810:47
7:56
-0:04
21M
21.00 mi13:14:082:44:197:498:16
8:16
+0:20
35K
21.75 mi13:19:512:50:027:495:43
7:38
-0:38
23M
23.00 mi13:29:432:59:547:499:52
7:53
+0:15
24M
24.00 mi13:37:283:07:397:497:45
7:45
-0:08
40K
24.85 mi13:44:073:14:187:496:39
7:47
+0:02
25.2M
25.20 mi13:46:593:17:107:492:52
8:19
+0:32
Finish
26.22 mi13:54:303:24:417:497:31
7:23
-0:56

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

7:23 /mi

Average Pace

7:49 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:33

95% of race

Time at Steady Pace

11:08

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:48 /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 mi10:53:4023:517:4123:51
7:41
#11270
10K
6.21 mi11:17:4347:547:4324:03
7:44
#11912
15K
9.32 mi11:41:451:11:567:4324:02
7:44
#11945
20K
12.43 mi12:06:021:36:137:4524:17
7:49
#11899
Half
13.11 mi12:11:181:41:297:445:16
7:43
#11914
25K
15.53 mi12:30:132:00:247:4518:55
7:48
#11737
30K
18.64 mi12:55:052:25:167:4824:52
8:00
#11547
20M
20.00 mi13:05:522:36:037:4810:47
7:56
#11384
21M
21.00 mi13:14:082:44:197:498:16
8:16
#11209
35K
21.75 mi13:19:512:50:027:495:43
7:38
#11136
23M
23.00 mi13:29:432:59:547:499:52
7:53
#10965
24M
24.00 mi13:37:283:07:397:497:45
7:45
#10894
40K
24.85 mi13:44:073:14:187:496:39
7:47
#10777
25.2M
25.20 mi13:46:593:17:107:492:52
8:19
#10718
Finish
26.22 mi13:54:303:24:417:497:31
7:23
#10560
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi112702478247812189(Top 46%)3011(Top 26%)3011(Top 62%)
10K6.21 mi3.10 mi11912-6422827-3492827-34912619(Top 47%)3222(Top 28%)3222(Top 66%)
15K9.32 mi3.11 mi11945-332862-352862-3512189(Top 46%)3011(Top 26%)3011(Top 62%)
20K12.43 mi3.11 mi11899+462859+32859+311906(Top 45%)2919(Top 26%)2919(Top 60%)
Half13.11 mi0.68 mi11914-152864-52864-512151(Top 46%)3026(Top 26%)3026(Top 62%)
25K15.53 mi2.42 mi11737+1772781+832781+8311135(Top 42%)2559(Top 22%)2559(Top 52%)
30K18.64 mi3.11 mi11547+1902717+642717+6410962(Top 41%)2622(Top 23%)2622(Top 54%)
20M20.00 mi1.36 mi11384+1632647+702647+709834(Top 37%)2175(Top 19%)2175(Top 45%)
21M21.00 mi1.00 mi11209+1752570+772570+779077(Top 34%)1972(Top 17%)1972(Top 40%)
35K21.75 mi0.75 mi11136+732539+312539+319636(Top 36%)2218(Top 19%)2218(Top 45%)
23M23.00 mi1.25 mi10965+1712477+622477+628993(Top 34%)2036(Top 18%)2036(Top 42%)
24M24.00 mi1.00 mi10894+712473+42473+49480(Top 36%)2340(Top 20%)2340(Top 48%)
40K24.85 mi0.85 mi10777+1172437+362437+368603(Top 32%)2005(Top 18%)2005(Top 41%)
25.2M25.20 mi0.35 mi10718+592422+152422+158536(Top 32%)2086(Top 18%)2086(Top 43%)
Finish26.22 mi1.02 mi10560+1582379+432379+437677(Top 29%)1706(Top 15%)1706(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12189

Females

3011

F18-39

3011

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12619

Females

3222

F18-39

3222

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12189

Females

3011

F18-39

3011

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

11906

Females

2919

F18-39

2919

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12151

Females

3026

F18-39

3026

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11135

Females

2559

F18-39

2559

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10962

Females

2622

F18-39

2622

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9834

Females

2175

F18-39

2175

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

9077

Females

1972

F18-39

1972

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

9636

Females

2218

F18-39

2218

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

8993

Females

2036

F18-39

2036

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

9480

Females

2340

F18-39

2340

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8603

Females

2005

F18-39

2005

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8536

Females

2086

F18-39

2086

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7677

Females

1706

F18-39

1706

Passing Analysis

Category:
Athletes Passed
2129
Passed By
1419
Net Change
+710
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11270
5K → 10K108750-642#11270#11912
10K → 15K183216-33#11912#11945
15K → 20K188142+46#11945#11899
20K → Half1833-15#11899#11914
Half → 25K23356+177#11914#11737
25K → 30K27585+190#11737#11547
30K → 20M17916+163#11547#11384
20M → 21M19722+175#11384#11209
21M → 35K8512+73#11209#11136
35K → 23M19221+171#11136#10965
23M → 24M10534+71#10965#10894
24M → 40K13518+117#10894#10777
40K → 25.2M645+59#10777#10718
25.2M → Finish1679+158#10718#10560
TOTALS21291419+710
📊

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