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BOSTON MARATHON 2023

Cornelia Rosemann

Bib: 31684•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
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
12:19/mi
38:17
↑ 97↓ 3451.5%
10K· 6.21 mi
12:12/mi
1:16:11
↑ 79↓ 1380.4%
15K· 9.32 mi
12:12/mi
1:54:04
↑ 67↓ 78
20K· 12.43 mi
13:06/mi
2:34:47
↑ 106↓ 860.1%
Half· 13.11 mi
12:38/mi
2:43:24
↑ 19↓ 370.5%
25K· 15.53 mi
13:59/mi
3:17:19
↑ 66↓ 880.2%
30K· 18.64 mi
14:46/mi
4:03:12
↑ 181↓ 1480.2%
20M
13:05/mi
4:20:59
↑ 64↓ 500.2%
21M
15:06/mi
4:36:05
↑ 106↓ 241.6%
35K· 21.75 mi
12:53/mi
4:45:43
↑ 17↓ 861.7%
23M
14:00/mi
5:03:15
↑ 23↓ 630.6%
24M
13:15/mi
5:16:30
↓ 821.3%
40K· 24.85 mi
13:38/mi
5:28:09
↓ 200.3%
25.2M
15:22/mi
5:33:27
↑ 13↓ 160.2%
Finish· 26.22 mi
12:38/mi
5:46:19
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:43:24
Pace12:28 /mi
2nd Half
Distance13.11 mi
Time3:02:55
Pace13:57 /mi
📊Positive Split: 11.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:3038:1712:1938:17
12:19
-
10K
6.21 mi12:36:241:16:1112:1637:54
12:12
-0:07
15K
9.32 mi13:14:171:54:0412:1437:53
12:12
0:00
20K
12.43 mi13:55:002:34:4712:2740:43
13:06
+0:54
Half
13.11 mi14:03:372:43:2412:288:37
12:38
-0:28
25K
15.53 mi14:37:323:17:1912:4233:55
13:59
+1:21
30K
18.64 mi15:23:254:03:1213:0345:53
14:46
+0:47
20M
20.00 mi15:41:124:20:5913:0317:47
13:05
-1:41
21M
21.00 mi15:56:184:36:0513:0915:06
15:06
+2:01
35K
21.75 mi16:05:564:45:4313:089:38
12:53
-2:13
23M
23.00 mi16:23:285:03:1513:1117:32
14:00
+1:07
24M
24.00 mi16:36:435:16:3013:1113:15
13:15
-0:45
40K
24.85 mi16:48:225:28:0913:1211:39
13:38
+0:23
25.2M
25.20 mi16:53:405:33:2713:145:18
15:22
+1:44
Finish
26.22 mi17:06:325:46:1913:1312:52
12:38
-2:44

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

12:12 /mi

Average Pace

13:13 /mi

Slowest Pace

15:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:04

33% of race

Time at Steady Pace

1:42:52

30% of race

Time at Slower Pace

2:09:23

37% of race

Average Pace: 13:12 /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 mi11:58:3038:1712:1938:17
12:19
#26508
10K
6.21 mi12:36:241:16:1112:1637:54
12:12
#26469
15K
9.32 mi13:14:171:54:0412:1437:53
12:12
#26399
20K
12.43 mi13:55:002:34:4712:2740:43
13:06
#26381
Half
13.11 mi14:03:372:43:2412:288:37
12:38
#26376
25K
15.53 mi14:37:323:17:1912:4233:55
13:59
#26392
30K
18.64 mi15:23:254:03:1213:0345:53
14:46
#26418
20M
20.00 mi15:41:124:20:5913:0317:47
13:05
#26359
21M
21.00 mi15:56:184:36:0513:0915:06
15:06
#26350
35K
21.75 mi16:05:564:45:4313:089:38
12:53
#26336
23M
23.00 mi16:23:285:03:1513:1117:32
14:00
#26323
24M
24.00 mi16:36:435:16:3013:1113:15
13:15
#26307
40K
24.85 mi16:48:225:28:0913:1211:39
13:38
#26287
25.2M
25.20 mi16:53:405:33:2713:145:18
15:22
#26287
Finish
26.22 mi17:06:325:46:1913:1312:52
12:38
#26275
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi26508113641136426178(Top 98%)11154(Top 98%)11154(Top 924%)
10K6.21 mi3.10 mi26469+3911338+2611338+2626374(Top 99%)11281(Top 99%)11281(Top 935%)
15K9.32 mi3.11 mi26399+7011293+4511293+4526178(Top 98%)11154(Top 98%)11154(Top 924%)
20K12.43 mi3.11 mi26381+1811279+1411279+1426275(Top 99%)11219(Top 98%)11219(Top 929%)
Half13.11 mi0.68 mi26376+511273+611273+626223(Top 99%)11197(Top 98%)11197(Top 928%)
25K15.53 mi2.42 mi26392-1611284-1111284-1126342(Top 99%)11268(Top 99%)11268(Top 934%)
30K18.64 mi3.11 mi26418-2611303-1911303-1926348(Top 99%)11282(Top 99%)11282(Top 935%)
20M20.00 mi1.36 mi26359+5911268+3511268+3525252(Top 95%)10733(Top 94%)10733(Top 889%)
21M21.00 mi1.00 mi26350+911263+511263+525784(Top 97%)10995(Top 96%)10995(Top 911%)
35K21.75 mi0.75 mi26336+1411256+711256+725471(Top 96%)10896(Top 95%)10896(Top 903%)
23M23.00 mi1.25 mi26323+1311251+511251+525830(Top 97%)11057(Top 97%)11057(Top 916%)
24M24.00 mi1.00 mi26307+1611246+511246+525647(Top 96%)11001(Top 96%)11001(Top 911%)
40K24.85 mi0.85 mi26287+2011236+1011236+1025444(Top 96%)10892(Top 95%)10892(Top 902%)
25.2M25.20 mi0.35 mi2628711235+111235+125885(Top 97%)11117(Top 97%)11117(Top 921%)
Finish26.22 mi1.02 mi26275+1211234+111234+125764(Top 97%)11057(Top 97%)11057(Top 916%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21story building
+97ft-345ft

Overall

26178

Females

11154

F50-54

11154

5K→10K

3.1 - 6.2 mi

Top 99%
×5story building
+79ft-138ft

Overall

26374

Females

11281

F50-54

11281

10K→15K

6.2 - 9.3 mi

Top 98%
×3story building
+67ft-78ft

Overall

26178

Females

11154

F50-54

11154

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

26275

Females

11219

F50-54

11219

20K→Half

12.4 - 13.1 mi

Top 99%
×2story building
+19ft-37ft

Overall

26223

Females

11197

F50-54

11197

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

26342

Females

11268

F50-54

11268

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

26348

Females

11282

F50-54

11282

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

25252

Females

10733

F50-54

10733

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

25784

Females

10995

F50-54

10995

21M→35K

21.0 - 21.8 mi

Top 96%
×7story building
+17ft-86ft

Overall

25471

Females

10896

F50-54

10896

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

25830

Females

11057

F50-54

11057

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

25647

Females

11001

F50-54

11001

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

25444

Females

10892

F50-54

10892

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

25885

Females

11117

F50-54

11117

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

25764

Females

11057

F50-54

11057

Passing Analysis

Category:
Athletes Passed
390
Passed By
157
Net Change
+233
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26508
5K → 10K5314+39#26508#26469
10K → 15K733+70#26469#26399
15K → 20K4022+18#26399#26381
20K → Half105+5#26381#26376
Half → 25K2238-16#26376#26392
25K → 30K2046-26#26392#26418
30K → 20M601+59#26418#26359
20M → 21M189+9#26359#26350
21M → 35K162+14#26350#26336
35K → 23M185+13#26336#26323
23M → 24M193+16#26323#26307
24M → 40K200+20#26307#26287
40K → 25.2M440#26287#26287
25.2M → Finish175+12#26287#26275
TOTALS390157+233
📊

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