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BOSTON MARATHON 2023

Pam Henderson

Bib: 21511•F

IL

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
Top 36%
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
8:49/mi
27:22
↑ 97↓ 3451.5%
10K· 6.21 mi
8:46/mi
54:35
↑ 79↓ 1380.4%
15K· 9.32 mi
8:47/mi
1:21:51
↑ 67↓ 78
20K· 12.43 mi
8:52/mi
1:49:24
↑ 106↓ 860.1%
Half· 13.11 mi
8:42/mi
1:55:20
↑ 19↓ 370.5%
25K· 15.53 mi
8:56/mi
2:17:00
↑ 66↓ 880.2%
30K· 18.64 mi
9:09/mi
2:45:26
↑ 181↓ 1480.2%
20M
9:22/mi
2:58:10
↑ 64↓ 500.2%
21M
9:58/mi
3:08:08
↑ 106↓ 241.6%
35K· 21.75 mi
9:01/mi
3:14:53
↑ 17↓ 861.7%
23M
9:16/mi
3:26:29
↑ 23↓ 630.6%
24M
9:10/mi
3:35:39
↓ 821.3%
40K· 24.85 mi
9:13/mi
3:43:32
↓ 200.3%
25.2M
10:00/mi
3:46:59
↑ 13↓ 160.2%
Finish· 26.22 mi
9:05/mi
3:56:14
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:20
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:00:54
Pace9:13 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:1027:228:4927:22
8:49
-
10K
6.21 mi11:48:2354:358:4727:13
8:46
-0:03
15K
9.32 mi12:15:391:21:518:4727:16
8:47
+0:01
20K
12.43 mi12:43:121:49:248:4827:33
8:52
+0:05
Half
13.11 mi12:49:081:55:208:485:56
8:42
-0:10
25K
15.53 mi13:10:482:17:008:4921:40
8:56
+0:14
30K
18.64 mi13:39:142:45:268:5228:26
9:09
+0:13
20M
20.00 mi13:51:582:58:108:5412:44
9:22
+0:13
21M
21.00 mi14:01:563:08:088:589:58
9:58
+0:36
35K
21.75 mi14:08:413:14:538:586:45
9:01
-0:57
23M
23.00 mi14:20:173:26:298:5911:36
9:16
+0:15
24M
24.00 mi14:29:273:35:398:599:10
9:10
-0:06
40K
24.85 mi14:37:203:43:329:007:53
9:13
+0:03
25.2M
25.20 mi14:40:473:46:599:003:27
10:00
+0:47
Finish
26.22 mi14:50:023:56:149:019:15
9:05
-0:55

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

8:42 /mi

Average Pace

9:01 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:42:49

94% of race

Time at Steady Pace

13:25

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:01 /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 mi11:21:1027:228:4927:22
8:49
#19517
10K
6.21 mi11:48:2354:358:4727:13
8:46
#19608
15K
9.32 mi12:15:391:21:518:4727:16
8:47
#19511
20K
12.43 mi12:43:121:49:248:4827:33
8:52
#19332
Half
13.11 mi12:49:081:55:208:485:56
8:42
#19307
25K
15.53 mi13:10:482:17:008:4921:40
8:56
#19201
30K
18.64 mi13:39:142:45:268:5228:26
9:09
#18976
20M
20.00 mi13:51:582:58:108:5412:44
9:22
#18920
21M
21.00 mi14:01:563:08:088:589:58
9:58
#18854
35K
21.75 mi14:08:413:14:538:586:45
9:01
#18817
23M
23.00 mi14:20:173:26:298:5911:36
9:16
#18716
24M
24.00 mi14:29:273:35:398:599:10
9:10
#18681
40K
24.85 mi14:37:203:43:329:007:53
9:13
#18626
25.2M
25.20 mi14:40:473:46:599:003:27
10:00
#18605
Finish
26.22 mi14:50:023:56:149:019:15
9:05
#18605
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi195177525752519384(Top 73%)7319(Top 64%)7319(Top 898%)
10K6.21 mi3.10 mi19608-917537-127537-1219736(Top 74%)7536(Top 66%)7536(Top 925%)
15K9.32 mi3.11 mi19511+977453+847453+8419384(Top 73%)7319(Top 64%)7319(Top 898%)
20K12.43 mi3.11 mi19332+1797326+1277326+12719056(Top 72%)7121(Top 62%)7121(Top 874%)
Half13.11 mi0.68 mi19307+257308+187308+1818967(Top 71%)7066(Top 62%)7066(Top 867%)
25K15.53 mi2.42 mi19201+1067241+677241+6718656(Top 70%)6937(Top 61%)6937(Top 851%)
30K18.64 mi3.11 mi18976+2257125+1167125+11617946(Top 67%)6621(Top 58%)6621(Top 812%)
20M20.00 mi1.36 mi18920+567112+137112+1318342(Top 69%)6932(Top 61%)6932(Top 851%)
21M21.00 mi1.00 mi18854+667083+297083+2917930(Top 67%)6719(Top 59%)6719(Top 824%)
35K21.75 mi0.75 mi18817+377067+167067+1618025(Top 68%)6856(Top 60%)6856(Top 841%)
23M23.00 mi1.25 mi18716+1017025+427025+4217377(Top 65%)6493(Top 57%)6493(Top 797%)
24M24.00 mi1.00 mi18681+357014+117014+1117954(Top 67%)6878(Top 60%)6878(Top 844%)
40K24.85 mi0.85 mi18626+556993+216993+2117211(Top 65%)6523(Top 57%)6523(Top 800%)
25.2M25.20 mi0.35 mi18605+216985+86985+817456(Top 66%)6689(Top 59%)6689(Top 821%)
Finish26.22 mi1.02 mi186056995-106995-1018386(Top 69%)7107(Top 62%)7107(Top 872%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

19384

Females

7319

F55-59

7319

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19736

Females

7536

F55-59

7536

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

19384

Females

7319

F55-59

7319

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

19056

Females

7121

F55-59

7121

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

18967

Females

7066

F55-59

7066

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

18656

Females

6937

F55-59

6937

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17946

Females

6621

F55-59

6621

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18342

Females

6932

F55-59

6932

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

17930

Females

6719

F55-59

6719

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

18025

Females

6856

F55-59

6856

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

17377

Females

6493

F55-59

6493

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

17954

Females

6878

F55-59

6878

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17211

Females

6523

F55-59

6523

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17456

Females

6689

F55-59

6689

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

18386

Females

7107

F55-59

7107

Passing Analysis

Category:
Athletes Passed
1914
Passed By
1002
Net Change
+912
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19517
5K → 10K267358-91#19517#19608
10K → 15K236139+97#19608#19511
15K → 20K25172+179#19511#19332
20K → Half3914+25#19332#19307
Half → 25K17670+106#19307#19201
25K → 30K28762+225#19201#18976
30K → 20M11357+56#18976#18920
20M → 21M11549+66#18920#18854
21M → 35K6427+37#18854#18817
35K → 23M13130+101#18817#18716
23M → 24M7136+35#18716#18681
24M → 40K7621+55#18681#18626
40K → 25.2M3514+21#18626#18605
25.2M → Finish53530#18605#18605
TOTALS19141002+912
📊

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