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BOSTON MARATHON 2023

Tara Rossnagle

Bib: 19543•F

WA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 44%
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
8:32/mi
26:32
↑ 97↓ 3451.5%
10K· 6.21 mi
8:21/mi
52:30
↑ 79↓ 1380.4%
15K· 9.32 mi
8:10/mi
1:17:52
↑ 67↓ 78
20K· 12.43 mi
8:14/mi
1:43:27
↑ 106↓ 860.1%
Half· 13.11 mi
8:11/mi
1:49:02
↑ 19↓ 370.5%
25K· 15.53 mi
8:17/mi
2:09:06
↑ 66↓ 880.2%
30K· 18.64 mi
8:25/mi
2:35:15
↑ 181↓ 1480.2%
20M
8:42/mi
2:47:04
↑ 64↓ 500.2%
21M
9:22/mi
2:56:26
↑ 106↓ 241.6%
35K· 21.75 mi
8:17/mi
3:02:38
↑ 17↓ 861.7%
23M
8:41/mi
3:13:30
↑ 23↓ 630.6%
24M
8:23/mi
3:21:53
↓ 821.3%
40K· 24.85 mi
8:39/mi
3:29:17
↓ 200.3%
25.2M
9:31/mi
3:32:34
↑ 13↓ 160.2%
Finish· 26.22 mi
8:34/mi
3:41:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:02
Pace8:19 /mi
2nd Half
Distance13.11 mi
Time1:52:16
Pace8:34 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4326:328:3226:32
8:32
-
10K
6.21 mi11:46:4152:308:2725:58
8:21
-0:11
15K
9.32 mi12:12:031:17:528:2125:22
8:10
-0:11
20K
12.43 mi12:37:381:43:278:1925:35
8:14
+0:04
Half
13.11 mi12:43:131:49:028:195:35
8:11
-0:03
25K
15.53 mi13:03:172:09:068:1920:04
8:17
+0:06
30K
18.64 mi13:29:262:35:158:2026:09
8:25
+0:08
20M
20.00 mi13:41:152:47:048:2111:49
8:42
+0:17
21M
21.00 mi13:50:372:56:268:249:22
9:22
+0:40
35K
21.75 mi13:56:493:02:388:246:12
8:17
-1:05
23M
23.00 mi14:07:413:13:308:2510:52
8:41
+0:24
24M
24.00 mi14:16:043:21:538:258:23
8:23
-0:18
40K
24.85 mi14:23:283:29:178:257:24
8:39
+0:16
25.2M
25.20 mi14:26:453:32:348:263:17
9:31
+0:52
Finish
26.22 mi14:35:293:41:188:278:44
8:34
-0:57

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

8:10 /mi

Average Pace

8:27 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:28:39

94% of race

Time at Steady Pace

12:39

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:26 /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 mi11:20:4326:328:3226:32
8:32
#17843
10K
6.21 mi11:46:4152:308:2725:58
8:21
#17541
15K
9.32 mi12:12:031:17:528:2125:22
8:10
#16881
20K
12.43 mi12:37:381:43:278:1925:35
8:14
#16459
Half
13.11 mi12:43:131:49:028:195:35
8:11
#16416
25K
15.53 mi13:03:172:09:068:1920:04
8:17
#16107
30K
18.64 mi13:29:262:35:158:2026:09
8:25
#15669
20M
20.00 mi13:41:152:47:048:2111:49
8:42
#15579
21M
21.00 mi13:50:372:56:268:249:22
9:22
#15546
35K
21.75 mi13:56:493:02:388:246:12
8:17
#15483
23M
23.00 mi14:07:413:13:308:2510:52
8:41
#15385
24M
24.00 mi14:16:043:21:538:258:23
8:23
#15298
40K
24.85 mi14:23:283:29:178:257:24
8:39
#15253
25.2M
25.20 mi14:26:453:32:348:263:17
9:31
#15257
Finish
26.22 mi14:35:293:41:188:278:44
8:34
#15257
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi178436448644815625(Top 59%)5067(Top 44%)5067(Top 104%)
10K6.21 mi3.10 mi17541+3026247+2016247+20117292(Top 65%)6052(Top 53%)6052(Top 124%)
15K9.32 mi3.11 mi16881+6605843+4045843+40415625(Top 59%)5067(Top 44%)5067(Top 104%)
20K12.43 mi3.11 mi16459+4225581+2625581+26215187(Top 57%)4828(Top 42%)4828(Top 99%)
Half13.11 mi0.68 mi16416+435562+195562+1915732(Top 59%)5138(Top 45%)5138(Top 105%)
25K15.53 mi2.42 mi16107+3095399+1635399+16314805(Top 56%)4709(Top 41%)4709(Top 96%)
30K18.64 mi3.11 mi15669+4385168+2315168+23113813(Top 52%)4224(Top 37%)4224(Top 86%)
20M20.00 mi1.36 mi15579+905140+285140+2814850(Top 56%)4911(Top 43%)4911(Top 101%)
21M21.00 mi1.00 mi15546+335143-35143-315344(Top 58%)5252(Top 46%)5252(Top 108%)
35K21.75 mi0.75 mi15483+635120+235120+2314066(Top 53%)4602(Top 40%)4602(Top 94%)
23M23.00 mi1.25 mi15385+985086+345086+3414277(Top 54%)4777(Top 42%)4777(Top 98%)
24M24.00 mi1.00 mi15298+875040+465040+4613805(Top 52%)4563(Top 40%)4563(Top 93%)
40K24.85 mi0.85 mi15253+455023+175023+1714293(Top 54%)4908(Top 43%)4908(Top 100%)
25.2M25.20 mi0.35 mi15257-45042-195042-1915321(Top 58%)5482(Top 48%)5482(Top 112%)
Finish26.22 mi1.02 mi152575055-135055-1315837(Top 59%)5716(Top 50%)5716(Top 117%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15625

Females

5067

F18-39

5067

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

17292

Females

6052

F18-39

6052

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15625

Females

5067

F18-39

5067

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

15187

Females

4828

F18-39

4828

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

15732

Females

5138

F18-39

5138

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

14805

Females

4709

F18-39

4709

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

13813

Females

4224

F18-39

4224

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

14850

Females

4911

F18-39

4911

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

15344

Females

5252

F18-39

5252

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14066

Females

4602

F18-39

4602

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14277

Females

4777

F18-39

4777

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

13805

Females

4563

F18-39

4563

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14293

Females

4908

F18-39

4908

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

15321

Females

5482

F18-39

5482

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

15837

Females

5716

F18-39

5716

Passing Analysis

Category:
Athletes Passed
3223
Passed By
637
Net Change
+2586
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17843
5K → 10K501199+302#17843#17541
10K → 15K68727+660#17541#16881
15K → 20K45028+422#16881#16459
20K → Half5512+43#16459#16416
Half → 25K33021+309#16416#16107
25K → 30K45921+438#16107#15669
30K → 20M13343+90#15669#15579
20M → 21M9562+33#15579#15546
21M → 35K8219+63#15546#15483
35K → 23M13436+98#15483#15385
23M → 24M11528+87#15385#15298
24M → 40K8035+45#15298#15253
40K → 25.2M3539-4#15253#15257
25.2M → Finish67670#15257#15257
TOTALS3223637+2586
📊

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