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BOSTON MARATHON 2023

Cornelia Ulmer

Bib: 12731•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 28%
Gender (Female)
#0 / 11423
Top 9%
Masters (Masters Women)
#0 / 6539
Top 3%
Division (F40-44)
#0 / 1878
Top 7%
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
7:15/mi
22:33
↑ 97↓ 3451.5%
10K· 6.21 mi
7:13/mi
44:57
↑ 79↓ 1380.4%
15K· 9.32 mi
7:19/mi
1:07:41
↑ 67↓ 78
20K· 12.43 mi
7:27/mi
1:30:49
↑ 106↓ 860.1%
Half· 13.11 mi
7:18/mi
1:35:48
↑ 19↓ 370.5%
25K· 15.53 mi
7:24/mi
1:53:44
↑ 66↓ 880.2%
30K· 18.64 mi
7:34/mi
2:17:14
↑ 181↓ 1480.2%
20M
7:35/mi
2:27:32
↑ 64↓ 500.2%
21M
8:03/mi
2:35:35
↑ 106↓ 241.6%
35K· 21.75 mi
7:18/mi
2:41:03
↑ 17↓ 861.7%
23M
7:33/mi
2:50:30
↑ 23↓ 630.6%
24M
7:08/mi
2:57:38
↓ 821.3%
40K· 24.85 mi
7:13/mi
3:03:48
↓ 200.3%
25.2M
7:44/mi
3:06:28
↑ 13↓ 160.2%
Finish· 26.22 mi
7:03/mi
3:13:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:48
Pace7:18 /mi
2nd Half
Distance13.11 mi
Time1:37:51
Pace7:28 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0422:337:1522:33
7:15
-
10K
6.21 mi11:12:2844:577:1422:24
7:13
-0:02
15K
9.32 mi11:35:121:07:417:1622:44
7:19
+0:06
20K
12.43 mi11:58:201:30:497:1823:08
7:27
+0:08
Half
13.11 mi12:03:191:35:487:184:59
7:18
-0:09
25K
15.53 mi12:21:151:53:447:1917:56
7:24
+0:06
30K
18.64 mi12:44:452:17:147:2223:30
7:34
+0:10
20M
20.00 mi12:55:032:27:327:2310:18
7:35
+0:01
21M
21.00 mi13:03:062:35:357:258:03
8:03
+0:28
35K
21.75 mi13:08:342:41:037:245:28
7:18
-0:45
23M
23.00 mi13:18:012:50:307:259:27
7:33
+0:15
24M
24.00 mi13:25:092:57:387:247:08
7:08
-0:25
40K
24.85 mi13:31:193:03:487:246:10
7:13
+0:05
25.2M
25.20 mi13:33:593:06:287:242:40
7:44
+0:31
Finish
26.22 mi13:41:103:13:397:237:11
7:03
-0:41

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

7:03 /mi

Average Pace

7:23 /mi

Slowest Pace

8:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:36

96% of race

Time at Steady Pace

8:03

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:23 /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 mi10:50:0422:337:1522:33
7:15
#7861
10K
6.21 mi11:12:2844:577:1422:24
7:13
#7990
15K
9.32 mi11:35:121:07:417:1622:44
7:19
#8179
20K
12.43 mi11:58:201:30:497:1823:08
7:27
#8311
Half
13.11 mi12:03:191:35:487:184:59
7:18
#8317
25K
15.53 mi12:21:151:53:447:1917:56
7:24
#8235
30K
18.64 mi12:44:452:17:147:2223:30
7:34
#8097
20M
20.00 mi12:55:032:27:327:2310:18
7:35
#7996
21M
21.00 mi13:03:062:35:357:258:03
8:03
#7940
35K
21.75 mi13:08:342:41:037:245:28
7:18
#7893
23M
23.00 mi13:18:012:50:307:259:27
7:33
#7787
24M
24.00 mi13:25:092:57:387:247:08
7:08
#7628
40K
24.85 mi13:31:193:03:487:246:10
7:13
#7503
25.2M
25.20 mi13:33:593:06:287:242:40
7:44
#7462
Finish
26.22 mi13:41:103:13:397:237:11
7:03
#7339
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi78619709708709(Top 33%)1324(Top 12%)1324(Top 71%)
10K6.21 mi3.10 mi7990-1291020-501020-508186(Top 31%)1107(Top 10%)1107(Top 59%)
15K9.32 mi3.11 mi8179-1891102-821102-828709(Top 33%)1324(Top 12%)1324(Top 71%)
20K12.43 mi3.11 mi8311-1321162-601162-608881(Top 33%)1436(Top 13%)1436(Top 76%)
Half13.11 mi0.68 mi8317-61167-51167-58674(Top 33%)1334(Top 12%)1334(Top 71%)
25K15.53 mi2.42 mi8235+821162+51162+58005(Top 30%)1185(Top 10%)1185(Top 63%)
30K18.64 mi3.11 mi8097+1381154+81154+87682(Top 29%)1172(Top 10%)1172(Top 62%)
20M20.00 mi1.36 mi7996+1011133+211133+217372(Top 28%)1165(Top 10%)1165(Top 62%)
21M21.00 mi1.00 mi7940+561122+111122+117696(Top 29%)1381(Top 12%)1381(Top 74%)
35K21.75 mi0.75 mi7893+471120+21120+27207(Top 27%)1169(Top 10%)1169(Top 62%)
23M23.00 mi1.25 mi7787+1061103+171103+176744(Top 25%)1075(Top 9%)1075(Top 57%)
24M24.00 mi1.00 mi7628+1591064+391064+395408(Top 20%)688(Top 6%)688(Top 37%)
40K24.85 mi0.85 mi7503+1251052+121052+124995(Top 19%)653(Top 6%)653(Top 35%)
25.2M25.20 mi0.35 mi7462+411049+31049+35125(Top 19%)770(Top 7%)770(Top 41%)
Finish26.22 mi1.02 mi7339+1231026+231026+235545(Top 21%)924(Top 8%)924(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

8709

Females

1324

F40-44

1324

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

8186

Females

1107

F40-44

1107

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

8709

Females

1324

F40-44

1324

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

8881

Females

1436

F40-44

1436

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

8674

Females

1334

F40-44

1334

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

8005

Females

1185

F40-44

1185

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

7682

Females

1172

F40-44

1172

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

7372

Females

1165

F40-44

1165

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7696

Females

1381

F40-44

1381

21M→35K

21.0 - 21.8 mi

Top 27%
×7story building
+17ft-86ft

Overall

7207

Females

1169

F40-44

1169

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

6744

Females

1075

F40-44

1075

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5408

Females

688

F40-44

688

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

4995

Females

653

F40-44

653

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5125

Females

770

F40-44

770

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

5545

Females

924

F40-44

924

Passing Analysis

Category:
Athletes Passed
1593
Passed By
1071
Net Change
+522
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7861
5K → 10K169298-129#7861#7990
10K → 15K74263-189#7990#8179
15K → 20K83215-132#8179#8311
20K → Half1723-6#8311#8317
Half → 25K14664+82#8317#8235
25K → 30K19557+138#8235#8097
30K → 20M12928+101#8097#7996
20M → 21M10044+56#7996#7940
21M → 35K6922+47#7940#7893
35K → 23M13125+106#7893#7787
23M → 24M1656+159#7787#7628
24M → 40K1338+125#7628#7503
40K → 25.2M432+41#7503#7462
25.2M → Finish13916+123#7462#7339
TOTALS15931071+522
📊

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