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BOSTON MARATHON 2023

Margaret Jakus

Bib: 14413•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 20%
Division (F18-39)
#0 / 4884
Top 34%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:11
Rank: #9328
Start → 5K
7:28/mi
23:11 split
10K· 6.21 mi
46:14
Rank: #9510 (-182)
5K → 10K
7:25/mi
23:03 split
15K· 9.32 mi
1:09:14
Rank: #9422 (+88)
10K → 15K
7:24/mi
23:00 split
20K· 12.43 mi
1:32:26
Rank: #9311 (+111)
15K → 20K
7:28/mi
23:12 split
Half· 13.11 mi
1:37:30
Rank: #9329 (-18)
20K → Half
7:26/mi
5:04 split
25K· 15.53 mi
1:56:15
Rank: #9506 (-177)
Half → 25K
7:44/mi
18:45 split
30K· 18.64 mi
2:21:28
Rank: #9901 (-395)
25K → 30K
8:07/mi
25:13 split
20M
2:32:33
Rank: #9956 (-55)
30K → 20M
8:09/mi
11:05 split
21M
2:41:14
Rank: #10040 (-84)
20M → 21M
8:41/mi
8:41 split
35K· 21.75 mi
2:47:11
Rank: #10089 (-49)
21M → 35K
7:57/mi
5:57 split
23M
2:57:31
Rank: #10163 (-74)
35K → 23M
8:15/mi
10:20 split
24M
3:05:37
Rank: #10218 (-55)
23M → 24M
8:06/mi
8:06 split
40K· 24.85 mi
3:12:35
Rank: #10212 (+6)
24M → 40K
8:09/mi
6:58 split
25.2M
3:15:38
Rank: #10234 (-22)
40K → 25.2M
8:51/mi
3:03 split
Finish· 26.22 mi
3:23:41
Rank: #10264 (-30)
25.2M → Finish
7:54/mi
8:03 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:30
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:46:11
Pace8:06 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1323:117:2823:11
7:28
-
10K
6.21 mi11:15:1646:147:2623:03
7:25
-0:03
15K
9.32 mi11:38:161:09:147:2623:00
7:24
-0:01
20K
12.43 mi12:01:281:32:267:2623:12
7:28
+0:04
Half
13.11 mi12:06:321:37:307:265:04
7:26
-0:02
25K
15.53 mi12:25:171:56:157:2918:45
7:44
+0:18
30K
18.64 mi12:50:302:21:287:3525:13
8:07
+0:23
20M
20.00 mi13:01:352:32:337:3811:05
8:09
+0:02
21M
21.00 mi13:10:162:41:147:418:41
8:41
+0:32
35K
21.75 mi13:16:132:47:117:415:57
7:57
-0:44
23M
23.00 mi13:26:332:57:317:4310:20
8:15
+0:18
24M
24.00 mi13:34:393:05:377:448:06
8:06
-0:09
40K
24.85 mi13:41:373:12:357:456:58
8:09
+0:03
25.2M
25.20 mi13:44:403:15:387:463:03
8:51
+0:42
Finish
26.22 mi13:52:433:23:417:468:03
7:54
-0:57

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

7:24 /mi

Average Pace

7:46 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:34

80% of race

Time at Steady Pace

37:04

18% of race

Time at Slower Pace

3:03

1% of race

Average Pace: 7:46 /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 mi10:52:1323:117:2823:11
7:28
#9328
10K
6.21 mi11:15:1646:147:2623:03
7:25
#9510
15K
9.32 mi11:38:161:09:147:2623:00
7:24
#9422
20K
12.43 mi12:01:281:32:267:2623:12
7:28
#9311
Half
13.11 mi12:06:321:37:307:265:04
7:26
#9329
25K
15.53 mi12:25:171:56:157:2918:45
7:44
#9506
30K
18.64 mi12:50:302:21:287:3525:13
8:07
#9901
20M
20.00 mi13:01:352:32:337:3811:05
8:09
#9956
21M
21.00 mi13:10:162:41:147:418:41
8:41
#10040
35K
21.75 mi13:16:132:47:117:415:57
7:57
#10089
23M
23.00 mi13:26:332:57:317:4310:20
8:15
#10163
24M
24.00 mi13:34:393:05:377:448:06
8:06
#10218
40K
24.85 mi13:41:373:12:357:456:58
8:09
#10212
25.2M
25.20 mi13:44:403:15:387:463:03
8:51
#10234
Finish
26.22 mi13:52:433:23:417:468:03
7:54
#10264
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9328154815489376(Top 35%)1577(Top 14%)1577(Top 32%)
10K6.21 mi3.10 mi9510-1821617-691617-699814(Top 37%)1740(Top 15%)1740(Top 36%)
15K9.32 mi3.11 mi9422+881588+291588+299376(Top 35%)1577(Top 14%)1577(Top 32%)
20K12.43 mi3.11 mi9311+1111563+251563+259073(Top 34%)1525(Top 13%)1525(Top 31%)
Half13.11 mi0.68 mi9329-181569-61569-69701(Top 36%)1772(Top 16%)1772(Top 36%)
25K15.53 mi2.42 mi9506-1771650-811650-8110573(Top 40%)2268(Top 20%)2268(Top 46%)
30K18.64 mi3.11 mi9901-3951850-2001850-20011767(Top 44%)3046(Top 27%)3046(Top 62%)
20M20.00 mi1.36 mi9956-551899-491899-4911390(Top 43%)2925(Top 26%)2925(Top 60%)
21M21.00 mi1.00 mi10040-841973-741973-7411566(Top 43%)3171(Top 28%)3171(Top 65%)
35K21.75 mi0.75 mi10089-492012-392012-3911788(Top 44%)3295(Top 29%)3295(Top 67%)
23M23.00 mi1.25 mi10163-742081-692081-6911558(Top 43%)3275(Top 29%)3275(Top 67%)
24M24.00 mi1.00 mi10218-552131-502131-5011951(Top 45%)3552(Top 31%)3552(Top 73%)
40K24.85 mi0.85 mi10212+62152-212152-2111032(Top 41%)3157(Top 28%)3157(Top 65%)
25.2M25.20 mi0.35 mi10234-222182-302182-3011597(Top 44%)3493(Top 31%)3493(Top 72%)
Finish26.22 mi1.02 mi10264-302228-462228-4611405(Top 43%)3393(Top 30%)3393(Top 69%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9376

Females

1577

F18-39

1577

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

9814

Females

1740

F18-39

1740

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9376

Females

1577

F18-39

1577

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9073

Females

1525

F18-39

1525

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

9701

Females

1772

F18-39

1772

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10573

Females

2268

F18-39

2268

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

11767

Females

3046

F18-39

3046

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

11390

Females

2925

F18-39

2925

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

11566

Females

3171

F18-39

3171

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11788

Females

3295

F18-39

3295

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

11558

Females

3275

F18-39

3275

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

11951

Females

3552

F18-39

3552

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11032

Females

3157

F18-39

3157

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11597

Females

3493

F18-39

3493

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

11405

Females

3393

F18-39

3393

Passing Analysis

Category:
Athletes Passed
1195*
Passed By
2129
Net Change
-936
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9328
5K → 10K203385-182#9328#9510
10K → 15K204116+88#9510#9422
15K → 20K19584+111#9422#9311
20K → Half2341-18#9311#9329
Half → 25K71248-177#9329#9506
25K → 30K68*463-395#9506#9901
30K → 20M74129-55#9901#9956
20M → 21M61143-84#9956#10040
21M → 35K3079-49#10040#10089
35K → 23M61135-74#10089#10163
23M → 24M49104-55#10163#10218
24M → 40K7367+6#10218#10212
40K → 25.2M25*47-22#10212#10234
25.2M → Finish5888-30#10234#10264
TOTALS1195*2129-936

* 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