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BOSTON MARATHON 2023

Pam Harlow

Bib: 25954•F

MO

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
10:51/mi
33:44
↑ 97↓ 3451.5%
10K· 6.21 mi
10:52/mi
1:07:31
↑ 79↓ 1380.4%
15K· 9.32 mi
10:42/mi
1:40:47
↑ 67↓ 78
20K· 12.43 mi
10:59/mi
2:14:53
↑ 106↓ 860.1%
Half· 13.11 mi
10:29/mi
2:22:02
↑ 19↓ 370.5%
25K· 15.53 mi
13:04/mi
2:53:42
↑ 66↓ 880.2%
30K· 18.64 mi
12:39/mi
3:33:01
↑ 181↓ 1480.2%
20M
12:36/mi
3:50:08
↑ 64↓ 500.2%
21M
13:32/mi
4:03:40
↑ 106↓ 241.6%
35K· 21.75 mi
11:50/mi
4:12:31
↑ 17↓ 861.7%
23M
12:17/mi
4:27:54
↑ 23↓ 630.6%
24M
11:57/mi
4:39:51
↓ 821.3%
40K· 24.85 mi
12:00/mi
4:50:07
↓ 200.3%
25.2M
12:40/mi
4:54:29
↑ 13↓ 160.2%
Finish· 26.22 mi
11:13/mi
5:05:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:22:02
Pace10:50 /mi
2nd Half
Distance13.11 mi
Time2:43:53
Pace12:30 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:4133:4410:5133:44
10:51
-
10K
6.21 mi12:27:281:07:3110:5233:47
10:52
+0:01
15K
9.32 mi13:00:441:40:4710:4933:16
10:42
-0:10
20K
12.43 mi13:34:502:14:5310:5134:06
10:59
+0:17
Half
13.11 mi13:41:592:22:0210:507:09
10:29
-0:30
25K
15.53 mi14:13:392:53:4211:1131:40
13:04
+2:35
30K
18.64 mi14:52:583:33:0111:2639:19
12:39
-0:25
20M
20.00 mi15:10:053:50:0811:3017:07
12:36
-0:03
21M
21.00 mi15:23:374:03:4011:3613:32
13:32
+0:56
35K
21.75 mi15:32:284:12:3111:378:51
11:50
-1:42
23M
23.00 mi15:47:514:27:5411:3915:23
12:17
+0:27
24M
24.00 mi15:59:484:39:5111:4011:57
11:57
-0:20
40K
24.85 mi16:10:044:50:0711:4010:16
12:00
+0:03
25.2M
25.20 mi16:14:264:54:2911:414:22
12:40
+0:40
Finish
26.22 mi16:25:525:05:5511:4111:26
11:13
-1:27

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

10:29 /mi

Average Pace

11:41 /mi

Slowest Pace

13:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:28

50% of race

Time at Steady Pace

46:27

15% of race

Time at Slower Pace

1:46:00

35% of race

Average Pace: 11:40 /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 mi11:53:4133:4410:5133:44
10:51
#25469
10K
6.21 mi12:27:281:07:3110:5233:47
10:52
#25391
15K
9.32 mi13:00:441:40:4710:4933:16
10:42
#25156
20K
12.43 mi13:34:502:14:5310:5134:06
10:59
#24999
Half
13.11 mi13:41:592:22:0210:507:09
10:29
#24958
25K
15.53 mi14:13:392:53:4211:1131:40
13:04
#25252
30K
18.64 mi14:52:583:33:0111:2639:19
12:39
#25249
20M
20.00 mi15:10:053:50:0811:3017:07
12:36
#25238
21M
21.00 mi15:23:374:03:4011:3613:32
13:32
#25210
35K
21.75 mi15:32:284:12:3111:378:51
11:50
#25190
23M
23.00 mi15:47:514:27:5411:3915:23
12:17
#25155
24M
24.00 mi15:59:484:39:5111:4011:57
11:57
#25146
40K
24.85 mi16:10:044:50:0711:4010:16
12:00
#25112
25.2M
25.20 mi16:14:264:54:2911:414:22
12:40
#25098
Finish
26.22 mi16:25:525:05:5511:4111:26
11:13
#25079
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi25469107071070724815(Top 93%)10361(Top 91%)10361(Top 1271%)
10K6.21 mi3.10 mi25391+7810661+4610661+4625305(Top 95%)10612(Top 93%)10612(Top 1302%)
15K9.32 mi3.11 mi25156+23510530+13110530+13124815(Top 93%)10361(Top 91%)10361(Top 1271%)
20K12.43 mi3.11 mi24999+15710455+7510455+7524605(Top 92%)10262(Top 90%)10262(Top 1259%)
Half13.11 mi0.68 mi24958+4110436+1910436+1924205(Top 91%)10042(Top 88%)10042(Top 1232%)
25K15.53 mi2.42 mi25252-29410614-17810614-17825892(Top 97%)11020(Top 96%)11020(Top 1352%)
30K18.64 mi3.11 mi25249+310628-1410628-1425143(Top 94%)10649(Top 93%)10649(Top 1307%)
20M20.00 mi1.36 mi25238+1110629-110629-124825(Top 93%)10513(Top 92%)10513(Top 1290%)
21M21.00 mi1.00 mi25210+2810615+1410615+1424626(Top 93%)10417(Top 91%)10417(Top 1278%)
35K21.75 mi0.75 mi25190+20106151061524515(Top 92%)10407(Top 91%)10407(Top 1277%)
23M23.00 mi1.25 mi25155+3510606+910606+924348(Top 91%)10313(Top 90%)10313(Top 1265%)
24M24.00 mi1.00 mi25146+910612-610612-624461(Top 92%)10412(Top 91%)10412(Top 1278%)
40K24.85 mi0.85 mi25112+3410595+1710595+1723914(Top 90%)10139(Top 89%)10139(Top 1244%)
25.2M25.20 mi0.35 mi25098+1410590+510590+523567(Top 89%)9973(Top 87%)9973(Top 1224%)
Finish26.22 mi1.02 mi25079+1910583+710583+724333(Top 91%)10322(Top 90%)10322(Top 1267%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21story building
+97ft-345ft

Overall

24815

Females

10361

F55-59

10361

5K→10K

3.1 - 6.2 mi

Top 95%
×5story building
+79ft-138ft

Overall

25305

Females

10612

F55-59

10612

10K→15K

6.2 - 9.3 mi

Top 93%
×3story building
+67ft-78ft

Overall

24815

Females

10361

F55-59

10361

15K→20K

9.3 - 12.4 mi

Top 92%
×5story building
+106ft-86ft

Overall

24605

Females

10262

F55-59

10262

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

24205

Females

10042

F55-59

10042

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

25892

Females

11020

F55-59

11020

25K→30K

15.5 - 18.6 mi

Top 94%
×9story building
+181ft-148ft

Overall

25143

Females

10649

F55-59

10649

30K→20M

18.6 - 20.0 mi

Top 93%
×5story building
+64ft-50ft

Overall

24825

Females

10513

F55-59

10513

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

24626

Females

10417

F55-59

10417

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

24515

Females

10407

F55-59

10407

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

24348

Females

10313

F55-59

10313

23M→24M

23.0 - 24.0 mi

Top 92%
×6story building
+12ft-82ft

Overall

24461

Females

10412

F55-59

10412

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

23914

Females

10139

F55-59

10139

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

23567

Females

9973

F55-59

9973

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2story building
+22ft-21ft

Overall

24333

Females

10322

F55-59

10322

Passing Analysis

Category:
Athletes Passed
1051
Passed By
661
Net Change
+390
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25469
5K → 10K201123+78#25469#25391
10K → 15K25419+235#25391#25156
15K → 20K19235+157#25156#24999
20K → Half454+41#24999#24958
Half → 25K12306-294#24958#25252
25K → 30K7673+3#25252#25249
30K → 20M3625+11#25249#25238
20M → 21M4416+28#25238#25210
21M → 35K3616+20#25210#25190
35K → 23M5015+35#25190#25155
23M → 24M2516+9#25155#25146
24M → 40K362+34#25146#25112
40K → 25.2M151+14#25112#25098
25.2M → Finish2910+19#25098#25079
TOTALS1051661+390
📊

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