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BOSTON MARATHON 2023

Margaret Napiwocki

Bib: 16689•F

WI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 43%
Gender (Female)
#0 / 11423
Top 24%
Division (F18-39)
#0 / 4884
Top 41%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:08
Rank: #9214
Start → 5K
23:08 | 7:27/mi
10K· 6.21 mi
46:32
Rank: #9928 (-714)
5K → 10K
23:24 | 7:32/mi
15K· 9.32 mi
1:10:23
Rank: #10514 (-586)
10K → 15K
23:51 | 7:41/mi
20K· 12.43 mi
1:34:51
Rank: #10984 (-470)
15K → 20K
24:28 | 7:53/mi
Half· 13.11 mi
1:40:09
Rank: #11040 (-56)
20K → Half
5:18 | 7:46/mi
25K· 15.53 mi
2:00:06
Rank: #11539 (-499)
Half → 25K
19:57 | 8:14/mi
30K· 18.64 mi
2:25:45
Rank: #11775 (-236)
25K → 30K
25:39 | 8:15/mi
20M
2:37:11
Rank: #11851 (-76)
30K → 20M
11:26 | 8:25/mi
21M
2:45:58
Rank: #11896 (-45)
20M → 21M
8:47 | 8:47/mi
35K· 21.75 mi
2:51:51
Rank: #11865 (+31)
21M → 35K
5:53 | 7:52/mi
23M
3:01:51
Rank: #11697 (+168)
35K → 23M
10:00 | 7:59/mi
24M
3:09:36
Rank: #11588 (+109)
23M → 24M
7:45 | 7:45/mi
40K· 24.85 mi
3:16:26
Rank: #11521 (+67)
24M → 40K
6:50 | 8:00/mi
25.2M
3:19:21
Rank: #11459 (+62)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:27:15
Rank: #11380 (+79)
25.2M → Finish
7:54 | 7:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:09
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:47:06
Pace8:10 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:2823:087:2723:08
7:27
-
10K
6.21 mi11:36:5246:327:2923:24
7:32
+0:05
15K
9.32 mi12:00:431:10:237:3323:51
7:41
+0:09
20K
12.43 mi12:25:111:34:517:3824:28
7:53
+0:12
Half
13.11 mi12:30:291:40:097:385:18
7:46
-0:07
25K
15.53 mi12:50:262:00:067:4419:57
8:14
+0:28
30K
18.64 mi13:16:052:25:457:4925:39
8:15
+0:01
20M
20.00 mi13:27:312:37:117:5211:26
8:25
+0:10
21M
21.00 mi13:36:182:45:587:548:47
8:47
+0:22
35K
21.75 mi13:42:112:51:517:545:53
7:52
-0:55
23M
23.00 mi13:52:113:01:517:5410:00
7:59
+0:07
24M
24.00 mi13:59:563:09:367:547:45
7:45
-0:14
40K
24.85 mi14:06:463:16:267:546:50
8:00
+0:15
25.2M
25.20 mi14:09:413:19:217:552:55
8:27
+0:27
Finish
26.22 mi14:17:353:27:157:557:54
7:45
-0:42

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

7:27 /mi

Average Pace

7:55 /mi

Slowest Pace

8:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:31

67% of race

Time at Steady Pace

1:08:44

33% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:54 /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 mi11:13:2823:087:2723:08
7:27
#9214
10K
6.21 mi11:36:5246:327:2923:24
7:32
#9928
15K
9.32 mi12:00:431:10:237:3323:51
7:41
#10514
20K
12.43 mi12:25:111:34:517:3824:28
7:53
#10984
Half
13.11 mi12:30:291:40:097:385:18
7:46
#11040
25K
15.53 mi12:50:262:00:067:4419:57
8:14
#11539
30K
18.64 mi13:16:052:25:457:4925:39
8:15
#11775
20M
20.00 mi13:27:312:37:117:5211:26
8:25
#11851
21M
21.00 mi13:36:182:45:587:548:47
8:47
#11896
35K
21.75 mi13:42:112:51:517:545:53
7:52
#11865
23M
23.00 mi13:52:113:01:517:5410:00
7:59
#11697
24M
24.00 mi13:59:563:09:367:547:45
7:45
#11588
40K
24.85 mi14:06:463:16:267:546:50
8:00
#11521
25.2M
25.20 mi14:09:413:19:217:552:55
8:27
#11459
Finish
26.22 mi14:17:353:27:157:557:54
7:45
#11380
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi92141486148611659(Top 44%)2710(Top 24%)2710(Top 55%)
10K6.21 mi3.10 mi9928-7141812-3261812-32610731(Top 40%)2172(Top 19%)2172(Top 44%)
15K9.32 mi3.11 mi10514-5862072-2602072-26011659(Top 44%)2710(Top 24%)2710(Top 55%)
20K12.43 mi3.11 mi10984-4702324-2522324-25212402(Top 47%)3195(Top 28%)3195(Top 65%)
Half13.11 mi0.68 mi11040-562351-272351-2712473(Top 47%)3176(Top 28%)3176(Top 65%)
25K15.53 mi2.42 mi11539-4992660-3092660-30914442(Top 54%)4469(Top 39%)4469(Top 92%)
30K18.64 mi3.11 mi11775-2362850-1902850-19012727(Top 48%)3593(Top 31%)3593(Top 74%)
20M20.00 mi1.36 mi11851-762911-612911-6113097(Top 49%)3904(Top 34%)3904(Top 80%)
21M21.00 mi1.00 mi11896-452949-382949-3812169(Top 46%)3490(Top 31%)3490(Top 71%)
35K21.75 mi0.75 mi11865+312951-22951-211162(Top 42%)2949(Top 26%)2949(Top 60%)
23M23.00 mi1.25 mi11697+1682877+742877+749688(Top 36%)2352(Top 21%)2352(Top 48%)
24M24.00 mi1.00 mi11588+1092839+382839+389462(Top 36%)2323(Top 20%)2323(Top 48%)
40K24.85 mi0.85 mi11521+672826+132826+1310029(Top 38%)2666(Top 23%)2666(Top 55%)
25.2M25.20 mi0.35 mi11459+622805+212805+219330(Top 35%)2389(Top 21%)2389(Top 49%)
Finish26.22 mi1.02 mi11380+792782+232782+2310343(Top 39%)2860(Top 25%)2860(Top 59%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21stories
+97ft-345ft

Overall

11659

Females

2710

F18-39

2710

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

10731

Females

2172

F18-39

2172

10K→15K

6.2 - 9.3 mi

Top 44%
×3stories
+67ft-78ft

Overall

11659

Females

2710

F18-39

2710

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

12402

Females

3195

F18-39

3195

20K→Half

12.4 - 13.1 mi

Top 47%
×2stories
+19ft-37ft

Overall

12473

Females

3176

F18-39

3176

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

14442

Females

4469

F18-39

4469

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

12727

Females

3593

F18-39

3593

30K→20M

18.6 - 20.0 mi

Top 49%
×5stories
+64ft-50ft

Overall

13097

Females

3904

F18-39

3904

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

12169

Females

3490

F18-39

3490

21M→35K

21.0 - 21.8 mi

Top 42%
×7stories
+17ft-86ft

Overall

11162

Females

2949

F18-39

2949

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

9688

Females

2352

F18-39

2352

23M→24M

23.0 - 24.0 mi

Top 36%
×6stories
+12ft-82ft

Overall

9462

Females

2323

F18-39

2323

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10029

Females

2666

F18-39

2666

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9330

Females

2389

F18-39

2389

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2stories
+22ft-21ft

Overall

10343

Females

2860

F18-39

2860

Passing Analysis

Category:
Athletes Passed
1137
Passed By
3301
Net Change
-2166
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9214
5K → 10K83797-714#9214#9928
10K → 15K51635-586#9928#10514
15K → 20K46516-470#10514#10984
20K → Half965-56#10984#11040
Half → 25K32531-499#11040#11539
25K → 30K116352-236#11539#11775
30K → 20M67143-76#11775#11851
20M → 21M78123-45#11851#11896
21M → 35K6534+31#11896#11865
35K → 23M18416+168#11865#11697
23M → 24M12920+109#11697#11588
24M → 40K9831+67#11588#11521
40K → 25.2M675+62#11521#11459
25.2M → Finish11233+79#11459#11380
TOTALS11373301-2166
📊

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