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BOSTON MARATHON 2023

Sophia Greszczuk

Bib: 25425•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
9:01/mi
28:02
↑ 97↓ 3451.5%
10K· 6.21 mi
9:04/mi
56:12
↑ 79↓ 1380.4%
15K· 9.32 mi
9:13/mi
1:24:51
↑ 67↓ 78
20K· 12.43 mi
8:51/mi
1:52:20
↑ 106↓ 860.1%
Half· 13.11 mi
8:49/mi
1:58:21
↑ 19↓ 370.5%
25K· 15.53 mi
8:48/mi
2:19:40
↑ 66↓ 880.2%
30K· 18.64 mi
9:08/mi
2:48:04
↑ 181↓ 1480.2%
20M
10:10/mi
3:01:53
↑ 64↓ 500.2%
21M
10:06/mi
3:11:59
↑ 106↓ 241.6%
35K· 21.75 mi
9:19/mi
3:18:57
↑ 17↓ 861.7%
23M
11:08/mi
3:32:53
↑ 23↓ 630.6%
24M
10:53/mi
3:43:46
↓ 821.3%
40K· 24.85 mi
15:39/mi
3:57:09
↓ 200.3%
25.2M
12:05/mi
4:01:19
↑ 13↓ 160.2%
Finish· 26.22 mi
9:58/mi
4:11:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:21
Pace9:02 /mi
2nd Half
Distance13.11 mi
Time2:13:07
Pace10:09 /mi
📊Positive Split: 12.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:0228:029:0128:02
9:01
-
10K
6.21 mi12:12:1256:129:0328:10
9:04
+0:03
15K
9.32 mi12:40:511:24:519:0628:39
9:13
+0:09
20K
12.43 mi13:08:201:52:209:0227:29
8:51
-0:22
Half
13.11 mi13:14:211:58:219:026:01
8:49
-0:02
25K
15.53 mi13:35:402:19:408:5921:19
8:48
-0:01
30K
18.64 mi14:04:042:48:049:0128:24
9:08
+0:20
20M
20.00 mi14:17:533:01:539:0613:49
10:10
+1:02
21M
21.00 mi14:27:593:11:599:0910:06
10:06
-0:04
35K
21.75 mi14:34:573:18:579:096:58
9:19
-0:47
23M
23.00 mi14:48:533:32:539:1513:56
11:08
+1:49
24M
24.00 mi14:59:463:43:469:1910:53
10:53
-0:15
40K
24.85 mi15:13:093:57:099:3213:23
15:39
+4:46
25.2M
25.20 mi15:17:194:01:199:354:10
12:05
-3:34
Finish
26.22 mi15:27:284:11:289:3610:09
9:58
-2:07

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

8:48 /mi

Average Pace

9:36 /mi

Slowest Pace

15:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:29:06

83% of race

Time at Slower Pace

42:22

17% of race

Average Pace: 9:35 /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 mi11:44:0228:029:0128:02
9:01
#20565
10K
6.21 mi12:12:1256:129:0328:10
9:04
#20827
15K
9.32 mi12:40:511:24:519:0628:39
9:13
#21045
20K
12.43 mi13:08:201:52:209:0227:29
8:51
#20537
Half
13.11 mi13:14:211:58:219:026:01
8:49
#20484
25K
15.53 mi13:35:402:19:408:5921:19
8:48
#20076
30K
18.64 mi14:04:042:48:049:0128:24
9:08
#19665
20M
20.00 mi14:17:533:01:539:0613:49
10:10
#19790
21M
21.00 mi14:27:593:11:599:0910:06
10:06
#19692
35K
21.75 mi14:34:573:18:579:096:58
9:19
#19669
23M
23.00 mi14:48:533:32:539:1513:56
11:08
#19964
24M
24.00 mi14:59:463:43:469:1910:53
10:53
#20142
40K
24.85 mi15:13:093:57:099:3213:23
15:39
#20764
25.2M
25.20 mi15:17:194:01:199:354:10
12:05
#20802
Finish
26.22 mi15:27:284:11:289:3610:09
9:58
#20821
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi205658153815321384(Top 80%)8441(Top 74%)8441(Top 173%)
10K6.21 mi3.10 mi20827-2628220-678220-6721148(Top 79%)8352(Top 73%)8352(Top 171%)
15K9.32 mi3.11 mi21045-2188312-928312-9221384(Top 80%)8441(Top 74%)8441(Top 173%)
20K12.43 mi3.11 mi20537+5088019+2938019+29318939(Top 71%)7056(Top 62%)7056(Top 144%)
Half13.11 mi0.68 mi20484+537989+307989+3019656(Top 74%)7484(Top 66%)7484(Top 153%)
25K15.53 mi2.42 mi20076+4087750+2397750+23917918(Top 67%)6523(Top 57%)6523(Top 134%)
30K18.64 mi3.11 mi19665+4117530+2207530+22017896(Top 67%)6590(Top 58%)6590(Top 135%)
20M20.00 mi1.36 mi19790-1257616-867616-8620931(Top 79%)8374(Top 73%)8374(Top 171%)
21M21.00 mi1.00 mi19692+987564+527564+5218416(Top 69%)7014(Top 61%)7014(Top 144%)
35K21.75 mi0.75 mi19669+237556+87556+819244(Top 72%)7527(Top 66%)7527(Top 154%)
23M23.00 mi1.25 mi19964-2957746-1907746-19022592(Top 85%)9372(Top 82%)9372(Top 192%)
24M24.00 mi1.00 mi20142-1787859-1137859-11322816(Top 86%)9529(Top 83%)9529(Top 195%)
40K24.85 mi0.85 mi20764-6228221-3628221-36226352(Top 99%)11321(Top 99%)11321(Top 232%)
25.2M25.20 mi0.35 mi20802-388250-298250-2922658(Top 85%)9476(Top 83%)9476(Top 194%)
Finish26.22 mi1.02 mi20821-198271-218271-2121665(Top 81%)8943(Top 78%)8943(Top 183%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

21384

Females

8441

F18-39

8441

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

21148

Females

8352

F18-39

8352

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

21384

Females

8441

F18-39

8441

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

18939

Females

7056

F18-39

7056

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

19656

Females

7484

F18-39

7484

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17918

Females

6523

F18-39

6523

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17896

Females

6590

F18-39

6590

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

20931

Females

8374

F18-39

8374

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

18416

Females

7014

F18-39

7014

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

19244

Females

7527

F18-39

7527

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

22592

Females

9372

F18-39

9372

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

22816

Females

9529

F18-39

9529

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

26352

Females

11321

F18-39

11321

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22658

Females

9476

F18-39

9476

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

21665

Females

8943

F18-39

8943

Passing Analysis

Category:
Athletes Passed
1983
Passed By
2239
Net Change
-256
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20565
5K → 10K176438-262#20565#20827
10K → 15K88306-218#20827#21045
15K → 20K5168+508#21045#20537
20K → Half618+53#20537#20484
Half → 25K4157+408#20484#20076
25K → 30K42716+411#20076#19665
30K → 20M53178-125#19665#19790
20M → 21M13032+98#19790#19692
21M → 35K5229+23#19692#19669
35K → 23M19314-295#19669#19964
23M → 24M13191-178#19964#20142
24M → 40K0622-622#20142#20764
40K → 25.2M745-38#20764#20802
25.2M → Finish2645-19#20802#20821
TOTALS19832239-256
📊

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