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BOSTON MARATHON 2023

Marissa Pekarek

Bib: 16235•F

TX

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 32%
Gender (Female)
#0 / 11423
Top 13%
Division (F18-39)
#0 / 4884
Top 24%
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
6:59/mi
21:43
↑ 97↓ 3451.5%
10K· 6.21 mi
7:03/mi
43:38
↑ 79↓ 1380.4%
15K· 9.32 mi
7:10/mi
1:05:53
↑ 67↓ 78
20K· 12.43 mi
7:27/mi
1:29:02
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:34:03
↑ 19↓ 370.5%
25K· 15.53 mi
7:31/mi
1:52:16
↑ 66↓ 880.2%
30K· 18.64 mi
7:39/mi
2:16:03
↑ 181↓ 1480.2%
20M
7:55/mi
2:26:49
↑ 64↓ 500.2%
21M
8:27/mi
2:35:16
↑ 106↓ 241.6%
35K· 21.75 mi
7:42/mi
2:41:02
↑ 17↓ 861.7%
23M
8:06/mi
2:51:11
↑ 23↓ 630.6%
24M
8:09/mi
2:59:20
↓ 821.3%
40K· 24.85 mi
8:19/mi
3:06:27
↓ 200.3%
25.2M
8:48/mi
3:09:29
↑ 13↓ 160.2%
Finish· 26.22 mi
8:11/mi
3:17:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:03
Pace7:10 /mi
2nd Half
Distance13.11 mi
Time1:43:46
Pace7:55 /mi
📊Positive Split: 10.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:11:5521:436:5921:43
6:59
-
10K
6.21 mi11:33:5043:387:0121:55
7:03
+0:04
15K
9.32 mi11:56:051:05:537:0422:15
7:10
+0:07
20K
12.43 mi12:19:141:29:027:1023:09
7:27
+0:17
Half
13.11 mi12:24:151:34:037:105:01
7:21
-0:06
25K
15.53 mi12:42:281:52:167:1418:13
7:31
+0:10
30K
18.64 mi13:06:152:16:037:1823:47
7:39
+0:08
20M
20.00 mi13:17:012:26:497:2010:46
7:55
+0:16
21M
21.00 mi13:25:282:35:167:248:27
8:27
+0:32
35K
21.75 mi13:31:142:41:027:245:46
7:42
-0:45
23M
23.00 mi13:41:232:51:117:2710:09
8:06
+0:24
24M
24.00 mi13:49:322:59:207:288:09
8:09
+0:03
40K
24.85 mi13:56:393:06:277:307:07
8:19
+0:10
25.2M
25.20 mi13:59:413:09:297:313:02
8:48
+0:29
Finish
26.22 mi14:08:013:17:497:338:20
8:11
-0:37

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

6:59 /mi

Average Pace

7:33 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:10:54

36% of race

Time at Steady Pace

1:21:41

41% of race

Time at Slower Pace

45:14

23% of race

Average Pace: 7:33 /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 mi11:11:5521:436:5921:43
6:59
#6207
10K
6.21 mi11:33:5043:387:0121:55
7:03
#6639
15K
9.32 mi11:56:051:05:537:0422:15
7:10
#6901
20K
12.43 mi12:19:141:29:027:1023:09
7:27
#7306
Half
13.11 mi12:24:151:34:037:105:01
7:21
#7375
25K
15.53 mi12:42:281:52:167:1418:13
7:31
#7558
30K
18.64 mi13:06:152:16:037:1823:47
7:39
#7633
20M
20.00 mi13:17:012:26:497:2010:46
7:55
#7740
21M
21.00 mi13:25:282:35:167:248:27
8:27
#7823
35K
21.75 mi13:31:142:41:027:245:46
7:42
#7890
23M
23.00 mi13:41:232:51:117:2710:09
8:06
#8031
24M
24.00 mi13:49:322:59:207:288:09
8:09
#8181
40K
24.85 mi13:56:393:06:277:307:07
8:19
#8329
25.2M
25.20 mi13:59:413:09:297:313:02
8:48
#8361
Finish
26.22 mi14:08:013:17:497:338:20
8:11
#8559
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi62075385387552(Top 28%)918(Top 8%)918(Top 19%)
10K6.21 mi3.10 mi6639-432645-107645-1077161(Top 27%)799(Top 7%)799(Top 16%)
15K9.32 mi3.11 mi6901-262712-67712-677552(Top 28%)918(Top 8%)918(Top 19%)
20K12.43 mi3.11 mi7306-405827-115827-1158937(Top 34%)1460(Top 13%)1460(Top 30%)
Half13.11 mi0.68 mi7375-69847-20847-209082(Top 34%)1506(Top 13%)1506(Top 31%)
25K15.53 mi2.42 mi7558-183914-67914-678892(Top 33%)1518(Top 13%)1518(Top 31%)
30K18.64 mi3.11 mi7633-75972-58972-588341(Top 31%)1444(Top 13%)1444(Top 30%)
20M20.00 mi1.36 mi7740-1071034-621034-629729(Top 37%)2115(Top 19%)2115(Top 43%)
21M21.00 mi1.00 mi7823-831081-471081-4710183(Top 38%)2458(Top 22%)2458(Top 50%)
35K21.75 mi0.75 mi7890-671119-381119-389999(Top 38%)2337(Top 20%)2337(Top 48%)
23M23.00 mi1.25 mi8031-1411199-801199-8010520(Top 40%)2769(Top 24%)2769(Top 57%)
24M24.00 mi1.00 mi8181-1501272-731272-7312256(Top 46%)3716(Top 33%)3716(Top 76%)
40K24.85 mi0.85 mi8329-1481345-731345-7312221(Top 46%)3778(Top 33%)3778(Top 77%)
25.2M25.20 mi0.35 mi8361-321373-281373-2811326(Top 43%)3338(Top 29%)3338(Top 68%)
Finish26.22 mi1.02 mi8559-1981466-931466-9313284(Top 50%)4343(Top 38%)4343(Top 89%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7552

Females

918

F18-39

918

5K→10K

3.1 - 6.2 mi

Top 27%
×5story building
+79ft-138ft

Overall

7161

Females

799

F18-39

799

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7552

Females

918

F18-39

918

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

8937

Females

1460

F18-39

1460

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

9082

Females

1506

F18-39

1506

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

8892

Females

1518

F18-39

1518

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8341

Females

1444

F18-39

1444

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9729

Females

2115

F18-39

2115

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10183

Females

2458

F18-39

2458

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

9999

Females

2337

F18-39

2337

35K→23M

21.8 - 23.0 mi

Top 40%
×5story building
+23ft-63ft

Overall

10520

Females

2769

F18-39

2769

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

12256

Females

3716

F18-39

3716

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12221

Females

3778

F18-39

3778

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11326

Females

3338

F18-39

3338

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

13284

Females

4343

F18-39

4343

Passing Analysis

Category:
Athletes Passed
526
Passed By
2878
Net Change
-2352
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6207
5K → 10K47479-432#6207#6639
10K → 15K46308-262#6639#6901
15K → 20K29434-405#6901#7306
20K → Half776-69#7306#7375
Half → 25K35218-183#7375#7558
25K → 30K115190-75#7558#7633
30K → 20M37144-107#7633#7740
20M → 21M40123-83#7740#7823
21M → 35K2693-67#7823#7890
35K → 23M47188-141#7890#8031
23M → 24M30180-150#8031#8181
24M → 40K25173-148#8181#8329
40K → 25.2M2254-32#8329#8361
25.2M → Finish20218-198#8361#8559
TOTALS5262878-2352
📊

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