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BOSTON MARATHON 2023

Ellen Townley

Bib: 16975•F

NE

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 45%
Gender (Female)
#0 / 11423
Top 27%
Division (F18-39)
#0 / 4884
Top 45%
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
8:02/mi
24:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:50/mi
49:19
↑ 79↓ 1380.4%
15K· 9.32 mi
8:10/mi
1:14:42
↑ 67↓ 78
20K· 12.43 mi
8:00/mi
1:39:33
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:44:59
↑ 19↓ 370.5%
25K· 15.53 mi
8:02/mi
2:04:28
↑ 66↓ 880.2%
30K· 18.64 mi
8:04/mi
2:29:33
↑ 181↓ 1480.2%
20M
8:05/mi
2:40:32
↑ 64↓ 500.2%
21M
8:31/mi
2:49:03
↑ 106↓ 241.6%
35K· 21.75 mi
7:45/mi
2:54:51
↑ 17↓ 861.7%
23M
7:43/mi
3:04:31
↑ 23↓ 630.6%
24M
7:39/mi
3:12:10
↓ 821.3%
40K· 24.85 mi
7:49/mi
3:18:51
↓ 200.3%
25.2M
8:04/mi
3:21:38
↑ 13↓ 160.2%
Finish· 26.22 mi
7:16/mi
3:29:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:44:59
Pace8:00 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:44:03
Pace7:56 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1924:588:0224:58
8:02
-
10K
6.21 mi11:39:4049:197:5624:21
7:50
-0:12
15K
9.32 mi12:05:031:14:428:0125:23
8:10
+0:20
20K
12.43 mi12:29:541:39:338:0124:51
8:00
-0:10
Half
13.11 mi12:35:201:44:598:005:26
7:58
-0:02
25K
15.53 mi12:54:492:04:288:0119:29
8:02
+0:04
30K
18.64 mi13:19:542:29:338:0125:05
8:04
+0:02
20M
20.00 mi13:30:532:40:328:0210:59
8:05
+0:01
21M
21.00 mi13:39:242:49:038:038:31
8:31
+0:26
35K
21.75 mi13:45:122:54:518:025:48
7:45
-0:46
23M
23.00 mi13:54:523:04:318:019:40
7:43
-0:02
24M
24.00 mi14:02:313:12:108:007:39
7:39
-0:04
40K
24.85 mi14:09:123:18:518:006:41
7:49
+0:10
25.2M
25.20 mi14:11:593:21:388:002:47
8:04
+0:15
Finish
26.22 mi14:19:233:29:027:597:24
7:16
-0:48

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

7:16 /mi

Average Pace

7:59 /mi

Slowest Pace

8:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:06:59

32% of race

Time at Steady Pace

2:22:03

68% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:58 /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 mi11:15:1924:588:0224:58
8:02
#14272
10K
6.21 mi11:39:4049:197:5624:21
7:50
#13881
15K
9.32 mi12:05:031:14:428:0125:23
8:10
#14453
20K
12.43 mi12:29:541:39:338:0124:51
8:00
#14181
Half
13.11 mi12:35:201:44:598:005:26
7:58
#14178
25K
15.53 mi12:54:492:04:288:0119:29
8:02
#13960
30K
18.64 mi13:19:542:29:338:0125:05
8:04
#13461
20M
20.00 mi13:30:532:40:328:0210:59
8:05
#13252
21M
21.00 mi13:39:242:49:038:038:31
8:31
#13056
35K
21.75 mi13:45:122:54:518:025:48
7:45
#12947
23M
23.00 mi13:54:523:04:318:019:40
7:43
#12609
24M
24.00 mi14:02:313:12:108:007:39
7:39
#12428
40K
24.85 mi14:09:123:18:518:006:41
7:49
#12288
25.2M
25.20 mi14:11:593:21:388:002:47
8:04
#12188
Finish
26.22 mi14:19:233:29:027:597:24
7:16
#11965
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi142724187418715652(Top 59%)5078(Top 44%)5078(Top 104%)
10K6.21 mi3.10 mi13881+3913969+2183969+21813458(Top 51%)3691(Top 32%)3691(Top 76%)
15K9.32 mi3.11 mi14453-5724327-3584327-35815652(Top 59%)5078(Top 44%)5078(Top 104%)
20K12.43 mi3.11 mi14181+2724192+1354192+13513414(Top 50%)3768(Top 33%)3768(Top 77%)
Half13.11 mi0.68 mi14178+34184+84184+814071(Top 53%)4102(Top 36%)4102(Top 84%)
25K15.53 mi2.42 mi13960+2184086+984086+9813035(Top 49%)3642(Top 32%)3642(Top 75%)
30K18.64 mi3.11 mi13461+4993818+2683818+26811479(Top 43%)2893(Top 25%)2893(Top 59%)
20M20.00 mi1.36 mi13252+2093707+1113707+11110918(Top 41%)2698(Top 24%)2698(Top 55%)
21M21.00 mi1.00 mi13056+1963615+923615+9210614(Top 40%)2687(Top 24%)2687(Top 55%)
35K21.75 mi0.75 mi12947+1093577+383577+3810364(Top 39%)2553(Top 22%)2553(Top 52%)
23M23.00 mi1.25 mi12609+3383393+1843393+1847911(Top 30%)1558(Top 14%)1558(Top 32%)
24M24.00 mi1.00 mi12428+1813307+863307+868802(Top 33%)2014(Top 18%)2014(Top 41%)
40K24.85 mi0.85 mi12288+1403250+573250+578834(Top 33%)2111(Top 18%)2111(Top 43%)
25.2M25.20 mi0.35 mi12188+1003208+423208+427036(Top 26%)1459(Top 13%)1459(Top 30%)
Finish26.22 mi1.02 mi11965+2233103+1053103+1056896(Top 26%)1401(Top 12%)1401(Top 29%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15652

Females

5078

F18-39

5078

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13458

Females

3691

F18-39

3691

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15652

Females

5078

F18-39

5078

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

13414

Females

3768

F18-39

3768

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

14071

Females

4102

F18-39

4102

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13035

Females

3642

F18-39

3642

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

11479

Females

2893

F18-39

2893

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

10918

Females

2698

F18-39

2698

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10614

Females

2687

F18-39

2687

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10364

Females

2553

F18-39

2553

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

7911

Females

1558

F18-39

1558

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

8802

Females

2014

F18-39

2014

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8834

Females

2111

F18-39

2111

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7036

Females

1459

F18-39

1459

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

6896

Females

1401

F18-39

1401

Passing Analysis

Category:
Athletes Passed
3268
Passed By
961
Net Change
+2307
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14272
5K → 10K541150+391#14272#13881
10K → 15K53625-572#13881#14453
15K → 20K33058+272#14453#14181
20K → Half2522+3#14181#14178
Half → 25K26143+218#14178#13960
25K → 30K51011+499#13960#13461
30K → 20M2178+209#13461#13252
20M → 21M21014+196#13252#13056
21M → 35K1167+109#13056#12947
35K → 23M3413+338#12947#12609
23M → 24M1832+181#12609#12428
24M → 40K15010+140#12428#12288
40K → 25.2M1022+100#12288#12188
25.2M → Finish2296+223#12188#11965
TOTALS3268961+2307
📊

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