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BOSTON MARATHON 2023

Samantha Feldman

Bib: 14872•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 32%
Gender (Female)
#0 / 11423
Top 13%
Masters (Masters Women)
#0 / 6539
Top 5%
Division (F40-44)
#0 / 1878
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:02
Rank: #8936
Start → 5K
23:02 | 7:25/mi
10K· 6.21 mi
46:37
Rank: #10054 (-1118)
5K → 10K
23:35 | 7:35/mi
15K· 9.32 mi
1:09:52
Rank: #10007 (+47)
10K → 15K
23:15 | 7:29/mi
20K· 12.43 mi
1:33:17
Rank: #9887 (+120)
15K → 20K
23:25 | 7:32/mi
Half· 13.11 mi
1:38:22
Rank: #9884 (+3)
20K → Half
5:05 | 7:27/mi
25K· 15.53 mi
1:56:33
Rank: #9682 (+202)
Half → 25K
18:11 | 7:30/mi
30K· 18.64 mi
2:20:22
Rank: #9395 (+287)
25K → 30K
23:49 | 7:40/mi
20M
2:30:38
Rank: #9207 (+188)
30K → 20M
10:16 | 7:33/mi
21M
2:38:43
Rank: #9091 (+116)
20M → 21M
8:05 | 8:05/mi
35K· 21.75 mi
2:44:13
Rank: #9021 (+70)
21M → 35K
5:30 | 7:21/mi
23M
2:53:48
Rank: #8897 (+124)
35K → 23M
9:35 | 7:39/mi
24M
3:01:12
Rank: #8793 (+104)
23M → 24M
7:24 | 7:24/mi
40K· 24.85 mi
3:07:43
Rank: #8718 (+75)
24M → 40K
6:31 | 7:37/mi
25.2M
3:10:30
Rank: #8686 (+32)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
3:18:06
Rank: #8638 (+48)
25.2M → Finish
7:36 | 7:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:22
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:39:44
Pace7:36 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:2523:027:2523:02
7:25
-
10K
6.21 mi11:20:0046:377:3023:35
7:35
+0:10
15K
9.32 mi11:43:151:09:527:3023:15
7:29
-0:06
20K
12.43 mi12:06:401:33:177:3023:25
7:32
+0:03
Half
13.11 mi12:11:451:38:227:305:05
7:27
-0:05
25K
15.53 mi12:29:561:56:337:3018:11
7:30
+0:03
30K
18.64 mi12:53:452:20:227:3223:49
7:40
+0:10
20M
20.00 mi13:04:012:30:387:3210:16
7:33
-0:07
21M
21.00 mi13:12:062:38:437:338:05
8:05
+0:32
35K
21.75 mi13:17:362:44:137:335:30
7:21
-0:44
23M
23.00 mi13:27:112:53:487:339:35
7:39
+0:18
24M
24.00 mi13:34:353:01:127:337:24
7:24
-0:15
40K
24.85 mi13:41:063:07:437:336:31
7:37
+0:13
25.2M
25.20 mi13:43:533:10:307:342:47
8:04
+0:27
Finish
26.22 mi13:51:293:18:067:347:36
7:27
-0:37

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

7:21 /mi

Average Pace

7:34 /mi

Slowest Pace

8:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:14

95% of race

Time at Steady Pace

10:52

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:33 /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 mi10:56:2523:027:2523:02
7:25
#8936
10K
6.21 mi11:20:0046:377:3023:35
7:35
#10054
15K
9.32 mi11:43:151:09:527:3023:15
7:29
#10007
20K
12.43 mi12:06:401:33:177:3023:25
7:32
#9887
Half
13.11 mi12:11:451:38:227:305:05
7:27
#9884
25K
15.53 mi12:29:561:56:337:3018:11
7:30
#9682
30K
18.64 mi12:53:452:20:227:3223:49
7:40
#9395
20M
20.00 mi13:04:012:30:387:3210:16
7:33
#9207
21M
21.00 mi13:12:062:38:437:338:05
8:05
#9091
35K
21.75 mi13:17:362:44:137:335:30
7:21
#9021
23M
23.00 mi13:27:112:53:487:339:35
7:39
#8897
24M
24.00 mi13:34:353:01:127:337:24
7:24
#8793
40K
24.85 mi13:41:063:07:437:336:31
7:37
#8718
25.2M
25.20 mi13:43:533:10:307:342:47
8:04
#8686
Finish
26.22 mi13:51:293:18:067:347:36
7:27
#8638
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi89361374137410050(Top 38%)1863(Top 16%)1863(Top 99%)
10K6.21 mi3.10 mi10054-11181863-4891863-48911240(Top 42%)2452(Top 21%)2452(Top 131%)
15K9.32 mi3.11 mi10007+471830+331830+3310050(Top 38%)1863(Top 16%)1863(Top 99%)
20K12.43 mi3.11 mi9887+1201789+411789+419624(Top 36%)1742(Top 15%)1742(Top 93%)
Half13.11 mi0.68 mi9884+31783+61783+69859(Top 37%)1814(Top 16%)1814(Top 97%)
25K15.53 mi2.42 mi9682+2021716+671716+678802(Top 33%)1481(Top 13%)1481(Top 79%)
30K18.64 mi3.11 mi9395+2871649+671649+678418(Top 32%)1471(Top 13%)1471(Top 78%)
20M20.00 mi1.36 mi9207+1881593+561593+567222(Top 27%)1114(Top 10%)1114(Top 59%)
21M21.00 mi1.00 mi9091+1161571+221571+227932(Top 30%)1491(Top 13%)1491(Top 79%)
35K21.75 mi0.75 mi9021+701550+211550+217527(Top 28%)1319(Top 12%)1319(Top 70%)
23M23.00 mi1.25 mi8897+1241528+221528+227484(Top 28%)1371(Top 12%)1371(Top 73%)
24M24.00 mi1.00 mi8793+1041513+151513+157093(Top 27%)1322(Top 12%)1322(Top 70%)
40K24.85 mi0.85 mi8718+751504+91504+97476(Top 28%)1549(Top 14%)1549(Top 82%)
25.2M25.20 mi0.35 mi8686+321497+71497+76981(Top 26%)1404(Top 12%)1404(Top 75%)
Finish26.22 mi1.02 mi8638+48149714978261(Top 31%)1936(Top 17%)1936(Top 103%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10050

Females

1863

F40-44

1863

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11240

Females

2452

F40-44

2452

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10050

Females

1863

F40-44

1863

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

9624

Females

1742

F40-44

1742

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

9859

Females

1814

F40-44

1814

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

8802

Females

1481

F40-44

1481

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

8418

Females

1471

F40-44

1471

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7222

Females

1114

F40-44

1114

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

7932

Females

1491

F40-44

1491

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

7527

Females

1319

F40-44

1319

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7484

Females

1371

F40-44

1371

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7093

Females

1322

F40-44

1322

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7476

Females

1549

F40-44

1549

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6981

Females

1404

F40-44

1404

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2stories
+22ft-21ft

Overall

8261

Females

1936

F40-44

1936

Passing Analysis

Category:
Athletes Passed
1978*
Passed By
1678
Net Change
+298
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8936
5K → 10K431160-1118#8936#10054
10K → 15K209161+47#10054#10007
15K → 20K231*111+120#10007#9887
20K → Half3431+3#9887#9884
Half → 25K22321+202#9884#9682
25K → 30K332*45+287#9682#9395
30K → 20M1968+188#9395#9207
20M → 21M14024+116#9207#9091
21M → 35K8212+70#9091#9021
35K → 23M14420+124#9021#8897
23M → 24M11915+104#8897#8793
24M → 40K9924+75#8793#8718
40K → 25.2M4210+32#8718#8686
25.2M → Finish8436+48#8686#8638
TOTALS1978*1678+298

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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