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BOSTON MARATHON 2023

Shannon Nagle

Bib: 26104•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 50%
Gender (Female)
#0 / 11423
Top 34%
Division (F18-39)
#0 / 4884
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
7:14/mi
22:29
↑ 97↓ 3451.5%
10K· 6.21 mi
7:19/mi
45:13
↑ 79↓ 1380.4%
15K· 9.32 mi
7:35/mi
1:08:46
↑ 67↓ 78
20K· 12.43 mi
7:47/mi
1:32:58
↑ 106↓ 860.1%
Half· 13.11 mi
7:50/mi
1:38:19
↑ 19↓ 370.5%
25K· 15.53 mi
8:15/mi
1:58:18
↑ 66↓ 880.2%
30K· 18.64 mi
8:35/mi
2:24:57
↑ 181↓ 1480.2%
20M
8:45/mi
2:36:51
↑ 64↓ 500.2%
21M
9:16/mi
2:46:07
↑ 106↓ 241.6%
35K· 21.75 mi
8:27/mi
2:52:26
↑ 17↓ 861.7%
23M
10:15/mi
3:05:16
↑ 23↓ 630.6%
24M
8:51/mi
3:14:07
↓ 821.3%
40K· 24.85 mi
9:02/mi
3:21:50
↓ 200.3%
25.2M
9:49/mi
3:25:13
↑ 13↓ 160.2%
Finish· 26.22 mi
8:23/mi
3:33:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:19
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:55:27
Pace8:48 /mi
📊Positive Split: 17.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:38:5322:297:1422:29
7:14
-
10K
6.21 mi12:01:3745:137:1722:44
7:19
+0:05
15K
9.32 mi12:25:101:08:467:2323:33
7:35
+0:16
20K
12.43 mi12:49:221:32:587:2924:12
7:47
+0:12
Half
13.11 mi12:54:431:38:197:305:21
7:50
+0:03
25K
15.53 mi13:14:421:58:187:3719:59
8:15
+0:25
30K
18.64 mi13:41:212:24:577:4726:39
8:35
+0:20
20M
20.00 mi13:53:152:36:517:5111:54
8:45
+0:10
21M
21.00 mi14:02:312:46:077:559:16
9:16
+0:31
35K
21.75 mi14:08:502:52:267:566:19
8:27
-0:49
23M
23.00 mi14:21:403:05:168:0312:50
10:15
+1:48
24M
24.00 mi14:30:313:14:078:058:51
8:51
-1:24
40K
24.85 mi14:38:143:21:508:077:43
9:02
+0:11
25.2M
25.20 mi14:41:373:25:138:093:23
9:49
+0:47
Finish
26.22 mi14:50:103:33:468:108:33
8:23
-1:26

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

7:14 /mi

Average Pace

8:10 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:19

46% of race

Time at Steady Pace

1:22:15

38% of race

Time at Slower Pace

33:12

16% of race

Average Pace: 8:09 /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 mi11:38:5322:297:1422:29
7:14
#7738
10K
6.21 mi12:01:3745:137:1722:44
7:19
#8307
15K
9.32 mi12:25:101:08:467:2323:33
7:35
#9037
20K
12.43 mi12:49:221:32:587:2924:12
7:47
#9664
Half
13.11 mi12:54:431:38:197:305:21
7:50
#9847
25K
15.53 mi13:14:421:58:187:3719:59
8:15
#10619
30K
18.64 mi13:41:212:24:577:4726:39
8:35
#11407
20M
20.00 mi13:53:152:36:517:5111:54
8:45
#11733
21M
21.00 mi14:02:312:46:077:559:16
9:16
#11954
35K
21.75 mi14:08:502:52:267:566:19
8:27
#12061
23M
23.00 mi14:21:403:05:168:0312:50
10:15
#12885
24M
24.00 mi14:30:313:14:078:058:51
8:51
#13045
40K
24.85 mi14:38:143:21:508:077:43
9:02
#13167
25.2M
25.20 mi14:41:373:25:138:093:23
9:49
#13212
Finish
26.22 mi14:50:103:33:468:108:33
8:23
#13267
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi773892692610857(Top 41%)2265(Top 20%)2265(Top 46%)
10K6.21 mi3.10 mi8307-5691149-2231149-2239005(Top 34%)1415(Top 12%)1415(Top 29%)
15K9.32 mi3.11 mi9037-7301444-2951444-29510857(Top 41%)2265(Top 20%)2265(Top 46%)
20K12.43 mi3.11 mi9664-6271691-2471691-24711668(Top 44%)2779(Top 24%)2779(Top 57%)
Half13.11 mi0.68 mi9847-1831770-791770-7913177(Top 49%)3611(Top 32%)3611(Top 74%)
25K15.53 mi2.42 mi10619-7722159-3892159-38914531(Top 55%)4533(Top 40%)4533(Top 93%)
30K18.64 mi3.11 mi11407-7882639-4802639-48014781(Top 56%)4799(Top 42%)4799(Top 98%)
20M20.00 mi1.36 mi11733-3262845-2062845-20615196(Top 57%)5105(Top 45%)5105(Top 105%)
21M21.00 mi1.00 mi11954-2212988-1432988-14314811(Top 56%)4930(Top 43%)4930(Top 101%)
35K21.75 mi0.75 mi12061-1073064-763064-7614977(Top 56%)5082(Top 44%)5082(Top 104%)
23M23.00 mi1.25 mi12885-8243564-5003564-50020714(Top 78%)8350(Top 73%)8350(Top 171%)
24M24.00 mi1.00 mi13045-1603676-1123676-11216495(Top 62%)6071(Top 53%)6071(Top 124%)
40K24.85 mi0.85 mi13167-1223765-893765-8916279(Top 61%)6004(Top 53%)6004(Top 123%)
25.2M25.20 mi0.35 mi13212-453805-403805-4016589(Top 62%)6178(Top 54%)6178(Top 126%)
Finish26.22 mi1.02 mi13267-553860-553860-5514685(Top 55%)5082(Top 44%)5082(Top 104%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

10857

Females

2265

F18-39

2265

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9005

Females

1415

F18-39

1415

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

10857

Females

2265

F18-39

2265

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

11668

Females

2779

F18-39

2779

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13177

Females

3611

F18-39

3611

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

14531

Females

4533

F18-39

4533

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

14781

Females

4799

F18-39

4799

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

15196

Females

5105

F18-39

5105

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

14811

Females

4930

F18-39

4930

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

14977

Females

5082

F18-39

5082

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

20714

Females

8350

F18-39

8350

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

16495

Females

6071

F18-39

6071

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16279

Females

6004

F18-39

6004

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16589

Females

6178

F18-39

6178

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

14685

Females

5082

F18-39

5082

Passing Analysis

Category:
Athletes Passed
379
Passed By
5906
Net Change
-5529
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7738
5K → 10K52621-569#7738#8307
10K → 15K18748-730#8307#9037
15K → 20K27654-627#9037#9664
20K → Half2185-183#9664#9847
Half → 25K19789-772#9847#10619
25K → 30K44832-788#10619#11407
30K → 20M30356-326#11407#11733
20M → 21M29250-221#11733#11954
21M → 35K27134-107#11954#12061
35K → 23M3827-824#12061#12885
23M → 24M27187-160#12885#13045
24M → 40K32154-122#13045#13167
40K → 25.2M3075-45#13167#13212
25.2M → Finish3994-55#13212#13267
TOTALS3795906-5529
📊

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