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BOSTON MARATHON 2023

Emily Skrzypczak

Bib: 14343•F

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0:00
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Overall
#0 / 26622
Top 41%
Gender (Female)
#0 / 11423
Top 22%
Division (F18-39)
#0 / 4884
Top 38%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:26
Rank: #10028
Start → 5K
7:33/mi
23:26 split
10K· 6.21 mi
46:53
Rank: #10435 (-407)
5K → 10K
7:33/mi
23:27 split
15K· 9.32 mi
1:10:16
Rank: #10414 (+21)
10K → 15K
7:32/mi
23:23 split
20K· 12.43 mi
1:34:06
Rank: #10456 (-42)
15K → 20K
7:40/mi
23:50 split
Half· 13.11 mi
1:39:20
Rank: #10517 (-61)
20K → Half
7:40/mi
5:14 split
25K· 15.53 mi
1:58:07
Rank: #10514 (+3)
Half → 25K
7:45/mi
18:47 split
30K· 18.64 mi
2:22:36
Rank: #10366 (+148)
25K → 30K
7:53/mi
24:29 split
20M
2:33:33
Rank: #10385 (-19)
30K → 20M
8:03/mi
10:57 split
21M
2:42:17
Rank: #10451 (-66)
20M → 21M
8:44/mi
8:44 split
35K· 21.75 mi
2:48:23
Rank: #10519 (-68)
21M → 35K
8:09/mi
6:06 split
23M
2:58:50
Rank: #10607 (-88)
35K → 23M
8:21/mi
10:27 split
24M
3:07:02
Rank: #10695 (-88)
23M → 24M
8:12/mi
8:12 split
40K· 24.85 mi
3:14:18
Rank: #10776 (-81)
24M → 40K
8:30/mi
7:16 split
25.2M
3:17:25
Rank: #10800 (-24)
40K → 25.2M
9:02/mi
3:07 split
Finish· 26.22 mi
3:25:37
Rank: #10864 (-64)
25.2M → Finish
8:03/mi
8:12 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:20
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:46:17
Pace8:06 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0123:267:3323:26
7:33
-
10K
6.21 mi11:15:2846:537:3323:27
7:33
0:00
15K
9.32 mi11:38:511:10:167:3223:23
7:32
-0:01
20K
12.43 mi12:02:411:34:067:3423:50
7:40
+0:08
Half
13.11 mi12:07:551:39:207:355:14
7:40
0:00
25K
15.53 mi12:26:421:58:077:3618:47
7:45
+0:05
30K
18.64 mi12:51:112:22:367:3924:29
7:53
+0:08
20M
20.00 mi13:02:082:33:337:4110:57
8:03
+0:10
21M
21.00 mi13:10:522:42:177:448:44
8:44
+0:41
35K
21.75 mi13:16:582:48:237:456:06
8:09
-0:35
23M
23.00 mi13:27:252:58:507:4710:27
8:21
+0:12
24M
24.00 mi13:35:373:07:027:488:12
8:12
-0:09
40K
24.85 mi13:42:533:14:187:497:16
8:30
+0:18
25.2M
25.20 mi13:46:003:17:257:503:07
9:02
+0:32
Finish
26.22 mi13:54:123:25:377:518:12
8:03
-0:59

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

7:32 /mi

Average Pace

7:51 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:03

86% of race

Time at Steady Pace

26:27

13% of race

Time at Slower Pace

3:07

2% of race

Average Pace: 7:51 /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 mi10:52:0123:267:3323:26
7:33
#10028
10K
6.21 mi11:15:2846:537:3323:27
7:33
#10435
15K
9.32 mi11:38:511:10:167:3223:23
7:32
#10414
20K
12.43 mi12:02:411:34:067:3423:50
7:40
#10456
Half
13.11 mi12:07:551:39:207:355:14
7:40
#10517
25K
15.53 mi12:26:421:58:077:3618:47
7:45
#10514
30K
18.64 mi12:51:112:22:367:3924:29
7:53
#10366
20M
20.00 mi13:02:082:33:337:4110:57
8:03
#10385
21M
21.00 mi13:10:522:42:177:448:44
8:44
#10451
35K
21.75 mi13:16:582:48:237:456:06
8:09
#10519
23M
23.00 mi13:27:252:58:507:4710:27
8:21
#10607
24M
24.00 mi13:35:373:07:027:488:12
8:12
#10695
40K
24.85 mi13:42:533:14:187:497:16
8:30
#10776
25.2M
25.20 mi13:46:003:17:257:503:07
9:02
#10800
Finish
26.22 mi13:54:123:25:377:518:12
8:03
#10864
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi100281877187710403(Top 39%)2030(Top 18%)2030(Top 42%)
10K6.21 mi3.10 mi10435-4072044-1672044-16710873(Top 41%)2247(Top 20%)2247(Top 46%)
15K9.32 mi3.11 mi10414+212020+242020+2410403(Top 39%)2030(Top 18%)2030(Top 42%)
20K12.43 mi3.11 mi10456-422048-282048-2810697(Top 40%)2258(Top 20%)2258(Top 46%)
Half13.11 mi0.68 mi10517-612076-282076-2811662(Top 44%)2706(Top 24%)2706(Top 55%)
25K15.53 mi2.42 mi10514+32102-262102-2610693(Top 40%)2335(Top 20%)2335(Top 48%)
30K18.64 mi3.11 mi10366+1482084+182084+189994(Top 38%)2161(Top 19%)2161(Top 44%)
20M20.00 mi1.36 mi10385-192114-302114-3010724(Top 40%)2592(Top 23%)2592(Top 53%)
21M21.00 mi1.00 mi10451-662182-682182-6811885(Top 45%)3332(Top 29%)3332(Top 68%)
35K21.75 mi0.75 mi10519-682227-452227-4513147(Top 49%)4068(Top 36%)4068(Top 83%)
23M23.00 mi1.25 mi10607-882309-822309-8212223(Top 46%)3634(Top 32%)3634(Top 74%)
24M24.00 mi1.00 mi10695-882374-652374-6512605(Top 47%)3905(Top 34%)3905(Top 80%)
40K24.85 mi0.85 mi10776-812436-622436-6213337(Top 50%)4373(Top 38%)4373(Top 90%)
25.2M25.20 mi0.35 mi10800-242464-282464-2812752(Top 48%)4085(Top 36%)4085(Top 84%)
Finish26.22 mi1.02 mi10864-642528-642528-6412450(Top 47%)3927(Top 34%)3927(Top 80%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

10403

Females

2030

F18-39

2030

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

10873

Females

2247

F18-39

2247

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

10403

Females

2030

F18-39

2030

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10697

Females

2258

F18-39

2258

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11662

Females

2706

F18-39

2706

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10693

Females

2335

F18-39

2335

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

9994

Females

2161

F18-39

2161

30K→20M

18.6 - 20.0 mi

Top 40%
×5stories
+64ft-50ft

Overall

10724

Females

2592

F18-39

2592

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

11885

Females

3332

F18-39

3332

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

13147

Females

4068

F18-39

4068

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

12223

Females

3634

F18-39

3634

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

12605

Females

3905

F18-39

3905

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13337

Females

4373

F18-39

4373

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12752

Females

4085

F18-39

4085

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

12450

Females

3927

F18-39

3927

Passing Analysis

Category:
Athletes Passed
1247*
Passed By
2083
Net Change
-836
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10028
5K → 10K145552-407#10028#10435
10K → 15K207186+21#10435#10414
15K → 20K133175-42#10414#10456
20K → Half1475-61#10456#10517
Half → 25K128125+3#10517#10514
25K → 30K23688+148#10514#10366
30K → 20M64*83-19#10366#10385
20M → 21M74140-66#10385#10451
21M → 35K2694-68#10451#10519
35K → 23M59147-88#10519#10607
23M → 24M41129-88#10607#10695
24M → 40K49130-81#10695#10776
40K → 25.2M2145-24#10776#10800
25.2M → Finish50114-64#10800#10864
TOTALS1247*2083-836

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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