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BOSTON MARATHON 2023

Megan Nichols

Bib: 10587•F

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 16%
Division (F18-39)
#0 / 4884
Top 29%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:18
Rank: #5208
Start → 5K
21:18 | 6:51/mi
10K· 6.21 mi
42:17
Rank: #5020 (+188)
5K → 10K
20:59 | 6:45/mi
15K· 9.32 mi
1:03:09
Rank: #4764 (+256)
10K → 15K
20:52 | 6:43/mi
20K· 12.43 mi
1:24:13
Rank: #4618 (+146)
15K → 20K
21:04 | 6:47/mi
Half· 13.11 mi
1:28:55
Rank: #4688 (-70)
20K → Half
4:42 | 6:53/mi
25K· 15.53 mi
1:46:03
Rank: #4968 (-280)
Half → 25K
17:08 | 7:04/mi
30K· 18.64 mi
2:15:00
Rank: #7254 (-2286)
25K → 30K
28:57 | 9:19/mi
20M
2:26:16
Rank: #7542 (-288)
30K → 20M
11:16 | 8:17/mi
21M
2:34:20
Rank: #7521 (+21)
20M → 21M
8:04 | 8:04/mi
35K· 21.75 mi
2:41:25
Rank: #8033 (-512)
21M → 35K
7:05 | 9:28/mi
23M
2:51:08
Rank: #8005 (+28)
35K → 23M
9:43 | 7:46/mi
24M
3:00:55
Rank: #8706 (-701)
23M → 24M
9:47 | 9:47/mi
40K· 24.85 mi
3:09:34
Rank: #9266 (-560)
24M → 40K
8:39 | 10:07/mi
25.2M
3:12:43
Rank: #9338 (-72)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:20:59
Rank: #9455 (-117)
25.2M → Finish
8:16 | 8:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:55
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time1:52:04
Pace8:33 /mi
📊Positive Split: 26.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:5321:186:5121:18
6:51
-
10K
6.21 mi11:08:5242:176:4820:59
6:45
-0:06
15K
9.32 mi11:29:441:03:096:4720:52
6:43
-0:02
20K
12.43 mi11:50:481:24:136:4721:04
6:47
+0:04
Half
13.11 mi11:55:301:28:556:474:42
6:53
+0:06
25K
15.53 mi12:12:381:46:036:5017:08
7:04
+0:11
30K
18.64 mi12:41:352:15:007:1528:57
9:19
+2:15
20M
20.00 mi12:52:512:26:167:1911:16
8:17
-1:02
21M
21.00 mi13:00:552:34:207:218:04
8:04
-0:13
35K
21.75 mi13:08:002:41:257:257:05
9:28
+1:24
23M
23.00 mi13:17:432:51:087:269:43
7:46
-1:42
24M
24.00 mi13:27:303:00:557:329:47
9:47
+2:01
40K
24.85 mi13:36:093:09:347:388:39
10:07
+0:20
25.2M
25.20 mi13:39:183:12:437:393:09
9:08
-0:59
Finish
26.22 mi13:47:343:20:597:408:16
8:07
-1:01

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

6:43 /mi

Average Pace

7:40 /mi

Slowest Pace

10:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:03

53% of race

Time at Steady Pace

37:19

19% of race

Time at Slower Pace

57:37

29% of race

Average Pace: 7:40 /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 mi10:47:5321:186:5121:18
6:51
#5208
10K
6.21 mi11:08:5242:176:4820:59
6:45
#5020
15K
9.32 mi11:29:441:03:096:4720:52
6:43
#4764
20K
12.43 mi11:50:481:24:136:4721:04
6:47
#4618
Half
13.11 mi11:55:301:28:556:474:42
6:53
#4688
25K
15.53 mi12:12:381:46:036:5017:08
7:04
#4968
30K
18.64 mi12:41:352:15:007:1528:57
9:19
#7254
20M
20.00 mi12:52:512:26:167:1911:16
8:17
#7542
21M
21.00 mi13:00:552:34:207:218:04
8:04
#7521
35K
21.75 mi13:08:002:41:257:257:05
9:28
#8033
23M
23.00 mi13:17:432:51:087:269:43
7:46
#8005
24M
24.00 mi13:27:303:00:557:329:47
9:47
#8706
40K
24.85 mi13:36:093:09:347:388:39
10:07
#9266
25.2M
25.20 mi13:39:183:12:437:393:09
9:08
#9338
Finish
26.22 mi13:47:343:20:597:408:16
8:07
#9455
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi52083793794309(Top 16%)270(Top 2%)270(Top 6%)
10K6.21 mi3.10 mi5020+188360+19360+194878(Top 18%)348(Top 3%)348(Top 7%)
15K9.32 mi3.11 mi4764+256327+33327+334309(Top 16%)270(Top 2%)270(Top 6%)
20K12.43 mi3.11 mi4618+146306+21306+214283(Top 16%)278(Top 2%)278(Top 6%)
Half13.11 mi0.68 mi4688-70312-6312-66002(Top 23%)522(Top 5%)522(Top 11%)
25K15.53 mi2.42 mi4968-280347-35347-355959(Top 22%)543(Top 5%)543(Top 11%)
30K18.64 mi3.11 mi7254-2286845-498845-49818711(Top 70%)7031(Top 62%)7031(Top 144%)
20M20.00 mi1.36 mi7542-288978-133978-13312301(Top 46%)3452(Top 30%)3452(Top 71%)
21M21.00 mi1.00 mi7521+21982-4982-47830(Top 29%)1445(Top 13%)1445(Top 30%)
35K21.75 mi0.75 mi8033-5121178-1961178-19619745(Top 74%)7773(Top 68%)7773(Top 159%)
23M23.00 mi1.25 mi8005+281191-131191-138173(Top 31%)1663(Top 15%)1663(Top 34%)
24M24.00 mi1.00 mi8706-7011472-2811472-28120166(Top 76%)8059(Top 71%)8059(Top 165%)
40K24.85 mi0.85 mi9266-5601730-2581730-25820283(Top 76%)8204(Top 72%)8204(Top 168%)
25.2M25.20 mi0.35 mi9338-721774-441774-4413278(Top 50%)4349(Top 38%)4349(Top 89%)
Finish26.22 mi1.02 mi9455-1171844-701844-7012863(Top 48%)4134(Top 36%)4134(Top 85%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4309

Females

270

F18-39

270

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4878

Females

348

F18-39

348

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4309

Females

270

F18-39

270

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4283

Females

278

F18-39

278

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6002

Females

522

F18-39

522

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

5959

Females

543

F18-39

543

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

18711

Females

7031

F18-39

7031

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12301

Females

3452

F18-39

3452

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

7830

Females

1445

F18-39

1445

21M→35K

21.0 - 21.8 mi

Top 74%
×7stories
+17ft-86ft

Overall

19745

Females

7773

F18-39

7773

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8173

Females

1663

F18-39

1663

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

20166

Females

8059

F18-39

8059

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20283

Females

8204

F18-39

8204

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13278

Females

4349

F18-39

4349

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

12863

Females

4134

F18-39

4134

Passing Analysis

Category:
Athletes Passed
1064
Passed By
5311
Net Change
-4247
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5208
5K → 10K307119+188#5208#5020
10K → 15K28125+256#5020#4764
15K → 20K18236+146#4764#4618
20K → Half575-70#4618#4688
Half → 25K40320-280#4688#4968
25K → 30K22288-2286#4968#7254
30K → 20M24312-288#7254#7542
20M → 21M6746+21#7542#7521
21M → 35K5517-512#7521#8033
35K → 23M9971+28#8033#8005
23M → 24M8709-701#8005#8706
24M → 40K8568-560#8706#9266
40K → 25.2M1284-72#9266#9338
25.2M → Finish24141-117#9338#9455
TOTALS10645311-4247
📊

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