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BOSTON MARATHON 2023

Nora Mills

Bib: 16041•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 29%
Gender (Female)
#0 / 11423
Top 10%
Masters (Masters Women)
#0 / 6539
Top 4%
Division (F40-44)
#0 / 1878
Top 8%
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
7:56/mi
24:39
↑ 97↓ 3451.5%
10K· 6.21 mi
7:22/mi
47:33
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:10:33
↑ 67↓ 78
20K· 12.43 mi
7:26/mi
1:33:38
↑ 106↓ 860.1%
Half· 13.11 mi
7:20/mi
1:38:38
↑ 19↓ 370.5%
25K· 15.53 mi
7:20/mi
1:56:24
↑ 66↓ 880.2%
30K· 18.64 mi
7:24/mi
2:19:23
↑ 181↓ 1480.2%
20M
7:27/mi
2:29:30
↑ 64↓ 500.2%
21M
7:51/mi
2:37:21
↑ 106↓ 241.6%
35K· 21.75 mi
7:06/mi
2:42:40
↑ 17↓ 861.7%
23M
7:22/mi
2:51:53
↑ 23↓ 630.6%
24M
7:05/mi
2:58:58
↓ 821.3%
40K· 24.85 mi
7:14/mi
3:05:09
↓ 200.3%
25.2M
7:53/mi
3:07:52
↑ 13↓ 160.2%
Finish· 26.22 mi
7:17/mi
3:15:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:38:38
Pace7:31 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:36:39
Pace7:22 /mi
📊Negative Split: 2.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3524:397:5624:39
7:56
-
10K
6.21 mi11:39:2947:337:3922:54
7:22
-0:34
15K
9.32 mi12:02:291:10:337:3423:00
7:24
+0:02
20K
12.43 mi12:25:341:33:387:3223:05
7:26
+0:02
Half
13.11 mi12:30:341:38:387:315:00
7:20
-0:06
25K
15.53 mi12:48:201:56:247:3017:46
7:20
0:00
30K
18.64 mi13:11:192:19:237:2922:59
7:24
+0:04
20M
20.00 mi13:21:262:29:307:2810:07
7:27
+0:03
21M
21.00 mi13:29:172:37:217:307:51
7:51
+0:24
35K
21.75 mi13:34:362:42:407:295:19
7:06
-0:45
23M
23.00 mi13:43:492:51:537:289:13
7:22
+0:16
24M
24.00 mi13:50:542:58:587:277:05
7:05
-0:17
40K
24.85 mi13:57:053:05:097:276:11
7:14
+0:09
25.2M
25.20 mi13:59:483:07:527:272:43
7:53
+0:39
Finish
26.22 mi14:07:133:15:177:277:25
7:17
-0:36

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

7:05 /mi

Average Pace

7:27 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:04

82% of race

Time at Steady Pace

35:13

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:27 /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 mi11:16:3524:397:5624:39
7:56
#13534
10K
6.21 mi11:39:2947:337:3922:54
7:22
#11367
15K
9.32 mi12:02:291:10:337:3423:00
7:24
#10655
20K
12.43 mi12:25:341:33:387:3223:05
7:26
#10134
Half
13.11 mi12:30:341:38:387:315:00
7:20
#10041
25K
15.53 mi12:48:201:56:247:3017:46
7:20
#9587
30K
18.64 mi13:11:192:19:237:2922:59
7:24
#8985
20M
20.00 mi13:21:262:29:307:2810:07
7:27
#8756
21M
21.00 mi13:29:172:37:217:307:51
7:51
#8583
35K
21.75 mi13:34:362:42:407:295:19
7:06
#8475
23M
23.00 mi13:43:492:51:537:289:13
7:22
#8255
24M
24.00 mi13:50:542:58:587:277:05
7:05
#8056
40K
24.85 mi13:57:053:05:097:276:11
7:14
#7917
25.2M
25.20 mi13:59:483:07:527:272:43
7:53
#7879
Finish
26.22 mi14:07:133:15:177:277:25
7:17
#7816
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi13534373637369363(Top 35%)1564(Top 14%)1564(Top 83%)
10K6.21 mi3.10 mi11367+21672526+12102526+12109399(Top 35%)1582(Top 14%)1582(Top 84%)
15K9.32 mi3.11 mi10655+7122140+3862140+3869363(Top 35%)1564(Top 14%)1564(Top 83%)
20K12.43 mi3.11 mi10134+5211888+2521888+2528756(Top 33%)1393(Top 12%)1393(Top 74%)
Half13.11 mi0.68 mi10041+931852+361852+368859(Top 33%)1409(Top 12%)1409(Top 75%)
25K15.53 mi2.42 mi9587+4541682+1701682+1707477(Top 28%)1004(Top 9%)1004(Top 53%)
30K18.64 mi3.11 mi8985+6021481+2011481+2016607(Top 25%)797(Top 7%)797(Top 42%)
20M20.00 mi1.36 mi8756+2291409+721409+726462(Top 24%)839(Top 7%)839(Top 45%)
21M21.00 mi1.00 mi8583+1731366+431366+436481(Top 24%)945(Top 8%)945(Top 50%)
35K21.75 mi0.75 mi8475+1081338+281338+286006(Top 23%)776(Top 7%)776(Top 41%)
23M23.00 mi1.25 mi8255+2201278+601278+605674(Top 21%)712(Top 6%)712(Top 38%)
24M24.00 mi1.00 mi8056+1991224+541224+545156(Top 19%)621(Top 5%)621(Top 33%)
40K24.85 mi0.85 mi7917+1391193+311193+315097(Top 19%)690(Top 6%)690(Top 37%)
25.2M25.20 mi0.35 mi7879+381180+131180+135884(Top 22%)1015(Top 9%)1015(Top 54%)
Finish26.22 mi1.02 mi7816+631182-21182-26998(Top 26%)1425(Top 12%)1425(Top 76%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9363

Females

1564

F40-44

1564

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

9399

Females

1582

F40-44

1582

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9363

Females

1564

F40-44

1564

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

8756

Females

1393

F40-44

1393

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

8859

Females

1409

F40-44

1409

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

7477

Females

1004

F40-44

1004

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6607

Females

797

F40-44

797

30K→20M

18.6 - 20.0 mi

Top 24%
×5story building
+64ft-50ft

Overall

6462

Females

839

F40-44

839

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6481

Females

945

F40-44

945

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6006

Females

776

F40-44

776

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

5674

Females

712

F40-44

712

23M→24M

23.0 - 24.0 mi

Top 19%
×6story building
+12ft-82ft

Overall

5156

Females

621

F40-44

621

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5097

Females

690

F40-44

690

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5884

Females

1015

F40-44

1015

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

6998

Females

1425

F40-44

1425

Passing Analysis

Category:
Athletes Passed
5823*
Passed By
105
Net Change
+5718
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13534
5K → 10K217912+2167#13534#11367
10K → 15K72816+712#11367#10655
15K → 20K525*4+521#10655#10134
20K → Half97*4+93#10134#10041
Half → 25K454*0+454#10041#9587
25K → 30K607*5+602#9587#8985
30K → 20M2323+229#8985#8756
20M → 21M18411+173#8756#8583
21M → 35K1102+108#8583#8475
35K → 23M2288+220#8475#8255
23M → 24M2012+199#8255#8056
24M → 40K1434+139#8056#7917
40K → 25.2M457+38#7917#7879
25.2M → Finish9027+63#7879#7816
TOTALS5823*105+5718

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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