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BOSTON MARATHON 2023

Amy Earnshaw-Romans

Bib: 19009•F

NS

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 49%
Division (F40-44)
#0 / 1878
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
8:22/mi
26:00
↑ 97↓ 3451.5%
10K· 6.21 mi
8:19/mi
51:51
↑ 79↓ 1380.4%
15K· 9.32 mi
8:21/mi
1:17:47
↑ 67↓ 78
20K· 12.43 mi
8:20/mi
1:43:40
↑ 106↓ 860.1%
Half· 13.11 mi
8:11/mi
1:49:15
↑ 19↓ 370.5%
25K· 15.53 mi
8:26/mi
2:09:42
↑ 66↓ 880.2%
30K· 18.64 mi
9:00/mi
2:37:39
↑ 181↓ 1480.2%
20M
9:24/mi
2:50:26
↑ 64↓ 500.2%
21M
10:35/mi
3:01:01
↑ 106↓ 241.6%
35K· 21.75 mi
9:27/mi
3:08:05
↑ 17↓ 861.7%
23M
9:41/mi
3:20:13
↑ 23↓ 630.6%
24M
9:26/mi
3:29:39
↓ 821.3%
40K· 24.85 mi
9:52/mi
3:38:05
↓ 200.3%
25.2M
11:39/mi
3:42:06
↑ 13↓ 160.2%
Finish· 26.22 mi
9:14/mi
3:51:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:15
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time2:02:16
Pace9:20 /mi
📊Positive Split: 11.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:3526:008:2226:00
8:22
-
10K
6.21 mi11:48:2651:518:2125:51
8:19
-0:03
15K
9.32 mi12:14:221:17:478:2125:56
8:21
+0:02
20K
12.43 mi12:40:151:43:408:2125:53
8:20
-0:01
Half
13.11 mi12:45:501:49:158:205:35
8:11
-0:09
25K
15.53 mi13:06:172:09:428:2120:27
8:26
+0:15
30K
18.64 mi13:34:142:37:398:2727:57
9:00
+0:34
20M
20.00 mi13:47:012:50:268:3112:47
9:24
+0:24
21M
21.00 mi13:57:363:01:018:3710:35
10:35
+1:11
35K
21.75 mi14:04:403:08:058:397:04
9:27
-1:08
23M
23.00 mi14:16:483:20:138:4212:08
9:41
+0:14
24M
24.00 mi14:26:143:29:398:449:26
9:26
-0:15
40K
24.85 mi14:34:403:38:058:468:26
9:52
+0:26
25.2M
25.20 mi14:38:413:42:068:494:01
11:39
+1:47
Finish
26.22 mi14:48:063:51:318:509:25
9:14
-2:25

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

8:11 /mi

Average Pace

8:50 /mi

Slowest Pace

11:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:42

56% of race

Time at Steady Pace

1:18:47

34% of race

Time at Slower Pace

23:02

10% of race

Average Pace: 8:50 /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 mi11:22:3526:008:2226:00
8:22
#16658
10K
6.21 mi11:48:2651:518:2125:51
8:19
#16820
15K
9.32 mi12:14:221:17:478:2125:56
8:21
#16825
20K
12.43 mi12:40:151:43:408:2125:53
8:20
#16577
Half
13.11 mi12:45:501:49:158:205:35
8:11
#16525
25K
15.53 mi13:06:172:09:428:2120:27
8:26
#16407
30K
18.64 mi13:34:142:37:398:2727:57
9:00
#16509
20M
20.00 mi13:47:012:50:268:3112:47
9:24
#16677
21M
21.00 mi13:57:363:01:018:3710:35
10:35
#16920
35K
21.75 mi14:04:403:08:058:397:04
9:27
#17046
23M
23.00 mi14:16:483:20:138:4212:08
9:41
#17203
24M
24.00 mi14:26:143:29:398:449:26
9:26
#17321
40K
24.85 mi14:34:403:38:058:468:26
9:52
#17445
25.2M
25.20 mi14:38:413:42:068:494:01
11:39
#17602
Finish
26.22 mi14:48:063:51:318:509:25
9:14
#17675
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi166585706570616843(Top 63%)5823(Top 51%)5823(Top 310%)
10K6.21 mi3.10 mi16820-1625792-865792-8617082(Top 64%)5923(Top 52%)5923(Top 315%)
15K9.32 mi3.11 mi16825-55810-185810-1816843(Top 63%)5823(Top 51%)5823(Top 310%)
20K12.43 mi3.11 mi16577+2485667+1435667+14315825(Top 59%)5247(Top 46%)5247(Top 279%)
Half13.11 mi0.68 mi16525+525631+365631+3615782(Top 59%)5188(Top 45%)5188(Top 276%)
25K15.53 mi2.42 mi16407+1185582+495582+4915828(Top 59%)5338(Top 47%)5338(Top 284%)
30K18.64 mi3.11 mi16509-1025688-1065688-10617162(Top 64%)6169(Top 54%)6169(Top 328%)
20M20.00 mi1.36 mi16677-1685798-1105798-11018489(Top 69%)7019(Top 61%)7019(Top 374%)
21M21.00 mi1.00 mi16920-2435939-1415939-14119853(Top 75%)7843(Top 69%)7843(Top 418%)
35K21.75 mi0.75 mi17046-1266025-866025-8619696(Top 74%)7750(Top 68%)7750(Top 413%)
23M23.00 mi1.25 mi17203-1576137-1126137-11219051(Top 72%)7434(Top 65%)7434(Top 396%)
24M24.00 mi1.00 mi17321-1186220-836220-8318980(Top 71%)7432(Top 65%)7432(Top 396%)
40K24.85 mi0.85 mi17445-1246310-906310-9019586(Top 74%)7823(Top 68%)7823(Top 417%)
25.2M25.20 mi0.35 mi17602-1576414-1046414-10421857(Top 82%)9041(Top 79%)9041(Top 481%)
Finish26.22 mi1.02 mi17675-736462-486462-4819124(Top 72%)7501(Top 66%)7501(Top 399%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

16843

Females

5823

F40-44

5823

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

17082

Females

5923

F40-44

5923

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

16843

Females

5823

F40-44

5823

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15825

Females

5247

F40-44

5247

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

15782

Females

5188

F40-44

5188

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

15828

Females

5338

F40-44

5338

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

17162

Females

6169

F40-44

6169

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18489

Females

7019

F40-44

7019

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

19853

Females

7843

F40-44

7843

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

19696

Females

7750

F40-44

7750

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

19051

Females

7434

F40-44

7434

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

18980

Females

7432

F40-44

7432

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19586

Females

7823

F40-44

7823

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21857

Females

9041

F40-44

9041

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

19124

Females

7501

F40-44

7501

Passing Analysis

Category:
Athletes Passed
1377
Passed By
2394
Net Change
-1017
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16658
5K → 10K234396-162#16658#16820
10K → 15K196201-5#16820#16825
15K → 20K31365+248#16825#16577
20K → Half6715+52#16577#16525
Half → 25K19880+118#16525#16407
25K → 30K156258-102#16407#16509
30K → 20M36204-168#16509#16677
20M → 21M22265-243#16677#16920
21M → 35K21147-126#16920#17046
35K → 23M38195-157#17046#17203
23M → 24M30148-118#17203#17321
24M → 40K27151-124#17321#17445
40K → 25.2M6163-157#17445#17602
25.2M → Finish33106-73#17602#17675
TOTALS13772394-1017
📊

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