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BOSTON MARATHON 2023

Catherine Gill

Bib: 15826•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
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
8:28/mi
26:18
↑ 97↓ 3451.5%
10K· 6.21 mi
8:51/mi
53:48
↑ 79↓ 1380.4%
15K· 9.32 mi
8:57/mi
1:21:36
↑ 67↓ 78
20K· 12.43 mi
9:12/mi
1:50:11
↑ 106↓ 860.1%
Half· 13.11 mi
8:56/mi
1:56:17
↑ 19↓ 370.5%
25K· 15.53 mi
9:16/mi
2:18:46
↑ 66↓ 880.2%
30K· 18.64 mi
9:37/mi
2:48:38
↑ 181↓ 1480.2%
20M
9:58/mi
3:02:11
↑ 64↓ 500.2%
21M
11:26/mi
3:13:37
↑ 106↓ 241.6%
35K· 21.75 mi
9:23/mi
3:20:38
↑ 17↓ 861.7%
23M
9:54/mi
3:33:02
↑ 23↓ 630.6%
24M
9:26/mi
3:42:28
↓ 821.3%
40K· 24.85 mi
9:59/mi
3:51:00
↓ 200.3%
25.2M
11:01/mi
3:54:48
↑ 13↓ 160.2%
Finish· 26.22 mi
9:32/mi
4:04:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:17
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:08:14
Pace9:47 /mi
📊Positive Split: 10.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:2226:188:2826:18
8:28
-
10K
6.21 mi11:24:5253:488:3927:30
8:51
+0:23
15K
9.32 mi11:52:401:21:368:4527:48
8:57
+0:06
20K
12.43 mi12:21:151:50:118:5228:35
9:12
+0:15
Half
13.11 mi12:27:211:56:178:526:06
8:56
-0:16
25K
15.53 mi12:49:502:18:468:5622:29
9:16
+0:20
30K
18.64 mi13:19:422:48:389:0329:52
9:37
+0:21
20M
20.00 mi13:33:153:02:119:0713:33
9:58
+0:21
21M
21.00 mi13:44:413:13:379:1311:26
11:26
+1:28
35K
21.75 mi13:51:423:20:389:147:01
9:23
-2:03
23M
23.00 mi14:04:063:33:029:1612:24
9:54
+0:31
24M
24.00 mi14:13:323:42:289:169:26
9:26
-0:28
40K
24.85 mi14:22:043:51:009:188:32
9:59
+0:33
25.2M
25.20 mi14:25:523:54:489:193:48
11:01
+1:02
Finish
26.22 mi14:35:354:04:319:209:43
9:32
-1:29

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

8:28 /mi

Average Pace

9:20 /mi

Slowest Pace

11:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:42

36% of race

Time at Steady Pace

1:47:06

44% of race

Time at Slower Pace

49:43

20% of race

Average Pace: 9:20 /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 mi10:57:2226:188:2826:18
8:28
#17313
10K
6.21 mi11:24:5253:488:3927:30
8:51
#18861
15K
9.32 mi11:52:401:21:368:4527:48
8:57
#19360
20K
12.43 mi12:21:151:50:118:5228:35
9:12
#19672
Half
13.11 mi12:27:211:56:178:526:06
8:56
#19717
25K
15.53 mi12:49:502:18:468:5622:29
9:16
#19799
30K
18.64 mi13:19:422:48:389:0329:52
9:37
#19798
20M
20.00 mi13:33:153:02:119:0713:33
9:58
#19856
21M
21.00 mi13:44:413:13:379:1311:26
11:26
#20033
35K
21.75 mi13:51:423:20:389:147:01
9:23
#20006
23M
23.00 mi14:04:063:33:029:1612:24
9:54
#19988
24M
24.00 mi14:13:323:42:289:169:26
9:26
#19950
40K
24.85 mi14:22:043:51:009:188:32
9:59
#19959
25.2M
25.20 mi14:25:523:54:489:193:48
11:01
#19974
Finish
26.22 mi14:35:354:04:319:209:43
9:32
#19978
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi173136132613220255(Top 76%)7811(Top 68%)7811(Top 958%)
10K6.21 mi3.10 mi18861-15487048-9167048-91620186(Top 76%)7809(Top 68%)7809(Top 958%)
15K9.32 mi3.11 mi19360-4997359-3117359-31120255(Top 76%)7811(Top 68%)7811(Top 958%)
20K12.43 mi3.11 mi19672-3127526-1677526-16720576(Top 77%)7991(Top 70%)7991(Top 980%)
Half13.11 mi0.68 mi19717-457543-177543-1720182(Top 76%)7753(Top 68%)7753(Top 951%)
25K15.53 mi2.42 mi19799-827605-627605-6220103(Top 76%)7749(Top 68%)7749(Top 951%)
30K18.64 mi3.11 mi19798+17613-87613-819839(Top 75%)7673(Top 67%)7673(Top 941%)
20M20.00 mi1.36 mi19856-587654-417654-4120407(Top 77%)8078(Top 71%)8078(Top 991%)
21M21.00 mi1.00 mi20033-1777767-1137767-11321751(Top 82%)8850(Top 77%)8850(Top 1086%)
35K21.75 mi0.75 mi20006+277755+127755+1219447(Top 73%)7620(Top 67%)7620(Top 935%)
23M23.00 mi1.25 mi19988+187761-67761-619698(Top 74%)7794(Top 68%)7794(Top 956%)
24M24.00 mi1.00 mi19950+387743+187743+1818972(Top 71%)7424(Top 65%)7424(Top 911%)
40K24.85 mi0.85 mi19959-97759-167759-1619906(Top 75%)8007(Top 70%)8007(Top 982%)
25.2M25.20 mi0.35 mi19974-157773-147773-1420510(Top 77%)8312(Top 73%)8312(Top 1020%)
Finish26.22 mi1.02 mi19978-47782-97782-920252(Top 76%)8145(Top 71%)8145(Top 999%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

20255

Females

7811

F55-59

7811

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

20186

Females

7809

F55-59

7809

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

20255

Females

7811

F55-59

7811

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

20576

Females

7991

F55-59

7991

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

20182

Females

7753

F55-59

7753

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

20103

Females

7749

F55-59

7749

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

19839

Females

7673

F55-59

7673

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

20407

Females

8078

F55-59

8078

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

21751

Females

8850

F55-59

8850

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

19447

Females

7620

F55-59

7620

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19698

Females

7794

F55-59

7794

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

18972

Females

7424

F55-59

7424

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19906

Females

8007

F55-59

8007

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

20510

Females

8312

F55-59

8312

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

20252

Females

8145

F55-59

8145

Passing Analysis

Category:
Athletes Passed
843
Passed By
3508
Net Change
-2665
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17313
5K → 10K271575-1548#17313#18861
10K → 15K51550-499#18861#19360
15K → 20K78390-312#19360#19672
20K → Half1964-45#19672#19717
Half → 25K82164-82#19717#19799
25K → 30K174173+1#19799#19798
30K → 20M65123-58#19798#19856
20M → 21M36213-177#19856#20033
21M → 35K5326+27#20033#20006
35K → 23M7860+18#20006#19988
23M → 24M7537+38#19988#19950
24M → 40K4655-9#19950#19959
40K → 25.2M1934-15#19959#19974
25.2M → Finish4044-4#19974#19978
TOTALS8433508-2665
📊

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