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BOSTON MARATHON 2023

Jessica Sokolowski

Bib: 10581•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 28%
Gender (Female)
#0 / 11423
Top 9%
Masters (Masters Women)
#0 / 6539
Top 3%
Division (F40-44)
#0 / 1878
Top 7%
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
7:32/mi
23:25
↑ 97↓ 3451.5%
10K· 6.21 mi
7:23/mi
46:22
↑ 79↓ 1380.4%
15K· 9.32 mi
7:23/mi
1:09:18
↑ 67↓ 78
20K· 12.43 mi
7:22/mi
1:32:12
↑ 106↓ 860.1%
Half· 13.11 mi
7:02/mi
1:37:00
↑ 19↓ 370.5%
25K· 15.53 mi
7:18/mi
1:54:43
↑ 66↓ 880.2%
30K· 18.64 mi
7:25/mi
2:17:46
↑ 181↓ 1480.2%
20M
7:24/mi
2:27:50
↑ 64↓ 500.2%
21M
7:57/mi
2:35:47
↑ 106↓ 241.6%
35K· 21.75 mi
7:01/mi
2:41:02
↑ 17↓ 861.7%
23M
7:22/mi
2:50:16
↑ 23↓ 630.6%
24M
7:13/mi
2:57:29
↓ 821.3%
40K· 24.85 mi
7:26/mi
3:03:50
↓ 200.3%
25.2M
8:01/mi
3:06:36
↑ 13↓ 160.2%
Finish· 26.22 mi
7:13/mi
3:13:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:37:00
Pace7:24 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:36:57
Pace7:24 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4223:257:3223:25
7:32
-
10K
6.21 mi11:12:3946:227:2822:57
7:23
-0:09
15K
9.32 mi11:35:351:09:187:2622:56
7:23
0:00
20K
12.43 mi11:58:291:32:127:2522:54
7:22
-0:01
Half
13.11 mi12:03:171:37:007:244:48
7:02
-0:20
25K
15.53 mi12:21:001:54:437:2317:43
7:18
+0:16
30K
18.64 mi12:44:032:17:467:2323:03
7:25
+0:07
20M
20.00 mi12:54:072:27:507:2310:04
7:24
-0:01
21M
21.00 mi13:02:042:35:477:257:57
7:57
+0:33
35K
21.75 mi13:07:192:41:027:245:15
7:01
-0:56
23M
23.00 mi13:16:332:50:167:249:14
7:22
+0:21
24M
24.00 mi13:23:462:57:297:247:13
7:13
-0:09
40K
24.85 mi13:30:073:03:507:246:21
7:26
+0:13
25.2M
25.20 mi13:32:533:06:367:242:46
8:01
+0:35
Finish
26.22 mi13:40:143:13:577:247:21
7:13
-0:48

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

7:01 /mi

Average Pace

7:24 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:14

94% of race

Time at Steady Pace

10:43

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:24 /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 mi10:49:4223:257:3223:25
7:32
#9965
10K
6.21 mi11:12:3946:227:2822:57
7:23
#9682
15K
9.32 mi11:35:351:09:187:2622:56
7:23
#9483
20K
12.43 mi11:58:291:32:127:2522:54
7:22
#9145
Half
13.11 mi12:03:171:37:007:244:48
7:02
#9017
25K
15.53 mi12:21:001:54:437:2317:43
7:18
#8711
30K
18.64 mi12:44:032:17:467:2323:03
7:25
#8285
20M
20.00 mi12:54:072:27:507:2310:04
7:24
#8121
21M
21.00 mi13:02:042:35:477:257:57
7:57
#8019
35K
21.75 mi13:07:192:41:027:245:15
7:01
#7885
23M
23.00 mi13:16:332:50:167:249:14
7:22
#7710
24M
24.00 mi13:23:462:57:297:247:13
7:13
#7599
40K
24.85 mi13:30:073:03:507:246:21
7:26
#7522
25.2M
25.20 mi13:32:533:06:367:242:46
8:01
#7499
Finish
26.22 mi13:40:143:13:577:247:21
7:13
#7430
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi9965184018409192(Top 35%)1514(Top 13%)1514(Top 81%)
10K6.21 mi3.10 mi9682+2831694+1461694+1469504(Top 36%)1621(Top 14%)1621(Top 86%)
15K9.32 mi3.11 mi9483+1991607+871607+879192(Top 35%)1514(Top 13%)1514(Top 81%)
20K12.43 mi3.11 mi9145+3381490+1171490+1178307(Top 31%)1218(Top 11%)1218(Top 65%)
Half13.11 mi0.68 mi9017+1281451+391451+396829(Top 26%)726(Top 6%)726(Top 39%)
25K15.53 mi2.42 mi8711+3061337+1141337+1147345(Top 28%)959(Top 8%)959(Top 51%)
30K18.64 mi3.11 mi8285+4261225+1121225+1126724(Top 25%)839(Top 7%)839(Top 45%)
20M20.00 mi1.36 mi8121+1641181+441181+446253(Top 23%)773(Top 7%)773(Top 41%)
21M21.00 mi1.00 mi8019+1021157+241157+247059(Top 27%)1154(Top 10%)1154(Top 61%)
35K21.75 mi0.75 mi7885+1341114+431114+435498(Top 21%)628(Top 5%)628(Top 33%)
23M23.00 mi1.25 mi7710+1751071+431071+435755(Top 22%)738(Top 6%)738(Top 39%)
24M24.00 mi1.00 mi7599+1111055+161055+165871(Top 22%)851(Top 7%)851(Top 45%)
40K24.85 mi0.85 mi7522+771057-21057-26278(Top 24%)1074(Top 9%)1074(Top 57%)
25.2M25.20 mi0.35 mi7499+231058-11058-16705(Top 25%)1291(Top 11%)1291(Top 69%)
Finish26.22 mi1.02 mi7430+691056+21056+26545(Top 25%)1256(Top 11%)1256(Top 67%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9192

Females

1514

F40-44

1514

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

9504

Females

1621

F40-44

1621

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9192

Females

1514

F40-44

1514

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8307

Females

1218

F40-44

1218

20K→Half

12.4 - 13.1 mi

Top 26%
×2story building
+19ft-37ft

Overall

6829

Females

726

F40-44

726

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

7345

Females

959

F40-44

959

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6724

Females

839

F40-44

839

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6253

Females

773

F40-44

773

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7059

Females

1154

F40-44

1154

21M→35K

21.0 - 21.8 mi

Top 21%
×7story building
+17ft-86ft

Overall

5498

Females

628

F40-44

628

35K→23M

21.8 - 23.0 mi

Top 22%
×5story building
+23ft-63ft

Overall

5755

Females

738

F40-44

738

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

5871

Females

851

F40-44

851

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6278

Females

1074

F40-44

1074

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6705

Females

1291

F40-44

1291

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2story building
+22ft-21ft

Overall

6545

Females

1256

F40-44

1256

Passing Analysis

Category:
Athletes Passed
2968
Passed By
433
Net Change
+2535
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9965
5K → 10K470187+283#9965#9682
10K → 15K27576+199#9682#9483
15K → 20K35719+338#9483#9145
20K → Half1280+128#9145#9017
Half → 25K3115+306#9017#8711
25K → 30K44216+426#8711#8285
30K → 20M1728+164#8285#8121
20M → 21M12927+102#8121#8019
21M → 35K1395+134#8019#7885
35K → 23M1838+175#7885#7710
23M → 24M12312+111#7710#7599
24M → 40K9922+77#7599#7522
40K → 25.2M3512+23#7522#7499
25.2M → Finish10536+69#7499#7430
TOTALS2968433+2535
📊

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