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BOSTON MARATHON 2023

Amber Schroering

Bib: 18194•F

IN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 47%
Masters (Masters Women)
#0 / 6539
Top 36%
Division (F45-49)
#0 / 1817
Top 42%
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
8:00/mi
24:50
↑ 97↓ 3451.5%
10K· 6.21 mi
8:06/mi
50:00
↑ 79↓ 1380.4%
15K· 9.32 mi
8:14/mi
1:15:34
↑ 67↓ 78
20K· 12.43 mi
8:08/mi
1:40:50
↑ 106↓ 860.1%
Half· 13.11 mi
8:14/mi
1:46:27
↑ 19↓ 370.5%
25K· 15.53 mi
8:16/mi
2:06:29
↑ 66↓ 880.2%
30K· 18.64 mi
8:47/mi
2:33:46
↑ 181↓ 1480.2%
20M
9:05/mi
2:46:06
↑ 64↓ 500.2%
21M
9:57/mi
2:56:03
↑ 106↓ 241.6%
35K· 21.75 mi
8:35/mi
3:02:28
↑ 17↓ 861.7%
23M
8:55/mi
3:13:38
↑ 23↓ 630.6%
24M
8:54/mi
3:22:32
↓ 821.3%
40K· 24.85 mi
9:18/mi
3:30:29
↓ 200.3%
25.2M
9:57/mi
3:33:55
↑ 13↓ 160.2%
Finish· 26.22 mi
9:18/mi
3:43:24
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:27
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:56:57
Pace8:55 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0524:508:0024:50
8:00
-
10K
6.21 mi11:41:1550:008:0325:10
8:06
+0:06
15K
9.32 mi12:06:491:15:348:0625:34
8:14
+0:08
20K
12.43 mi12:32:051:40:508:0725:16
8:08
-0:06
Half
13.11 mi12:37:421:46:278:075:37
8:14
+0:06
25K
15.53 mi12:57:442:06:298:0920:02
8:16
+0:02
30K
18.64 mi13:25:012:33:468:1527:17
8:47
+0:31
20M
20.00 mi13:37:212:46:068:1812:20
9:05
+0:18
21M
21.00 mi13:47:182:56:038:239:57
9:57
+0:52
35K
21.75 mi13:53:433:02:288:236:25
8:35
-1:22
23M
23.00 mi14:04:533:13:388:2511:10
8:55
+0:20
24M
24.00 mi14:13:473:22:328:268:54
8:54
-0:01
40K
24.85 mi14:21:443:30:298:287:57
9:18
+0:24
25.2M
25.20 mi14:25:103:33:558:293:26
9:57
+0:39
Finish
26.22 mi14:34:393:43:248:329:29
9:18
-0:39

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

8:00 /mi

Average Pace

8:32 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:29

57% of race

Time at Steady Pace

1:06:06

30% of race

Time at Slower Pace

30:49

14% of race

Average Pace: 8:31 /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 mi11:16:0524:508:0024:50
8:00
#13986
10K
6.21 mi11:41:1550:008:0325:10
8:06
#14724
15K
9.32 mi12:06:491:15:348:0625:34
8:14
#15170
20K
12.43 mi12:32:051:40:508:0725:16
8:08
#14976
Half
13.11 mi12:37:421:46:278:075:37
8:14
#15017
25K
15.53 mi12:57:442:06:298:0920:02
8:16
#14935
30K
18.64 mi13:25:012:33:468:1527:17
8:47
#15120
20M
20.00 mi13:37:212:46:068:1812:20
9:05
#15267
21M
21.00 mi13:47:182:56:038:239:57
9:57
#15417
35K
21.75 mi13:53:433:02:288:236:25
8:35
#15425
23M
23.00 mi14:04:533:13:388:2511:10
8:55
#15424
24M
24.00 mi14:13:473:22:328:268:54
8:54
#15487
40K
24.85 mi14:21:443:30:298:287:57
9:18
#15574
25.2M
25.20 mi14:25:103:33:558:293:26
9:57
#15614
Finish
26.22 mi14:34:393:43:248:329:29
9:18
#15775
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi139864024402416084(Top 60%)5343(Top 47%)5343(Top 294%)
10K6.21 mi3.10 mi14724-7384482-4584482-45815529(Top 58%)4973(Top 44%)4973(Top 274%)
15K9.32 mi3.11 mi15170-4464764-2824764-28216084(Top 60%)5343(Top 47%)5343(Top 294%)
20K12.43 mi3.11 mi14976+1944669+954669+9514481(Top 54%)4394(Top 38%)4394(Top 242%)
Half13.11 mi0.68 mi15017-414695-264695-2616077(Top 60%)5345(Top 47%)5345(Top 294%)
25K15.53 mi2.42 mi14935+824669+264669+2614710(Top 55%)4656(Top 41%)4656(Top 256%)
30K18.64 mi3.11 mi15120-1854834-1654834-16515945(Top 60%)5466(Top 48%)5466(Top 301%)
20M20.00 mi1.36 mi15267-1474952-1184952-11816929(Top 64%)6109(Top 53%)6109(Top 336%)
21M21.00 mi1.00 mi15417-1505070-1185070-11817867(Top 67%)6675(Top 58%)6675(Top 367%)
35K21.75 mi0.75 mi15425-85087-175087-1715756(Top 59%)5551(Top 49%)5551(Top 306%)
23M23.00 mi1.25 mi15424+15116-295116-2915643(Top 59%)5541(Top 49%)5541(Top 305%)
24M24.00 mi1.00 mi15487-635166-505166-5016777(Top 63%)6233(Top 55%)6233(Top 343%)
40K24.85 mi0.85 mi15574-875230-645230-6417524(Top 66%)6689(Top 59%)6689(Top 368%)
25.2M25.20 mi0.35 mi15614-405260-305260-3017206(Top 65%)6532(Top 57%)6532(Top 359%)
Finish26.22 mi1.02 mi15775-1615359-995359-9919400(Top 73%)7669(Top 67%)7669(Top 422%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

16084

Females

5343

F45-49

5343

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

15529

Females

4973

F45-49

4973

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

16084

Females

5343

F45-49

5343

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

14481

Females

4394

F45-49

4394

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

16077

Females

5345

F45-49

5345

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

14710

Females

4656

F45-49

4656

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

15945

Females

5466

F45-49

5466

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

16929

Females

6109

F45-49

6109

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

17867

Females

6675

F45-49

6675

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

15756

Females

5551

F45-49

5551

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

15643

Females

5541

F45-49

5541

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16777

Females

6233

F45-49

6233

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17524

Females

6689

F45-49

6689

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17206

Females

6532

F45-49

6532

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

19400

Females

7669

F45-49

7669

Passing Analysis

Category:
Athletes Passed
1070
Passed By
2859
Net Change
-1789
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13986
5K → 10K70808-738#13986#14724
10K → 15K61507-446#14724#15170
15K → 20K28894+194#15170#14976
20K → Half2263-41#14976#15017
Half → 25K16684+82#15017#14935
25K → 30K117302-185#14935#15120
30K → 20M39186-147#15120#15267
20M → 21M50200-150#15267#15417
21M → 35K4351-8#15417#15425
35K → 23M9089+1#15425#15424
23M → 24M48111-63#15424#15487
24M → 40K37124-87#15487#15574
40K → 25.2M1656-40#15574#15614
25.2M → Finish23184-161#15614#15775
TOTALS10702859-1789
📊

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