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BOSTON MARATHON 2023

Chelsea Philpot

Bib: 20681•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
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
8:41/mi
27:00
↑ 97↓ 3451.5%
10K· 6.21 mi
8:35/mi
53:40
↑ 79↓ 1380.4%
15K· 9.32 mi
8:37/mi
1:20:27
↑ 67↓ 78
20K· 12.43 mi
8:48/mi
1:47:48
↑ 106↓ 860.1%
Half· 13.11 mi
8:42/mi
1:53:44
↑ 19↓ 370.5%
25K· 15.53 mi
9:10/mi
2:15:58
↑ 66↓ 880.2%
30K· 18.64 mi
9:07/mi
2:44:17
↑ 181↓ 1480.2%
20M
9:07/mi
2:56:40
↑ 64↓ 500.2%
21M
9:05/mi
3:05:45
↑ 106↓ 241.6%
35K· 21.75 mi
8:48/mi
3:12:20
↑ 17↓ 861.7%
23M
9:13/mi
3:23:53
↑ 23↓ 630.6%
24M
9:24/mi
3:33:17
↓ 821.3%
40K· 24.85 mi
9:23/mi
3:41:18
↓ 200.3%
25.2M
9:40/mi
3:44:38
↑ 13↓ 160.2%
Finish· 26.22 mi
8:34/mi
3:53:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:44
Pace8:41 /mi
2nd Half
Distance13.11 mi
Time1:59:38
Pace9:08 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:2627:008:4127:00
8:41
-
10K
6.21 mi11:47:0653:408:3826:40
8:35
-0:06
15K
9.32 mi12:13:531:20:278:3826:47
8:37
+0:02
20K
12.43 mi12:41:141:47:488:4027:21
8:48
+0:11
Half
13.11 mi12:47:101:53:448:415:56
8:42
-0:06
25K
15.53 mi13:09:242:15:588:4522:14
9:10
+0:28
30K
18.64 mi13:37:432:44:178:4928:19
9:07
-0:03
20M
20.00 mi13:50:062:56:408:5012:23
9:07
0:00
21M
21.00 mi13:59:113:05:458:519:05
9:05
-0:02
35K
21.75 mi14:05:463:12:208:516:35
8:48
-0:17
23M
23.00 mi14:17:193:23:538:5211:33
9:13
+0:25
24M
24.00 mi14:26:433:33:178:539:24
9:24
+0:11
40K
24.85 mi14:34:443:41:188:548:01
9:23
-0:01
25.2M
25.20 mi14:38:043:44:388:553:20
9:40
+0:17
Finish
26.22 mi14:46:483:53:228:548:44
8:34
-1:06

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

8:34 /mi

Average Pace

8:54 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:50:02

99% of race

Time at Steady Pace

3:20

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:54 /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 mi11:20:2627:008:4127:00
8:41
#18816
10K
6.21 mi11:47:0653:408:3826:40
8:35
#18732
15K
9.32 mi12:13:531:20:278:3826:47
8:37
#18647
20K
12.43 mi12:41:141:47:488:4027:21
8:48
#18664
Half
13.11 mi12:47:101:53:448:415:56
8:42
#18669
25K
15.53 mi13:09:242:15:588:4522:14
9:10
#18860
30K
18.64 mi13:37:432:44:178:4928:19
9:07
#18663
20M
20.00 mi13:50:062:56:408:5012:23
9:07
#18522
21M
21.00 mi13:59:113:05:458:519:05
9:05
#18259
35K
21.75 mi14:05:463:12:208:516:35
8:48
#18191
23M
23.00 mi14:17:193:23:538:5211:33
9:13
#18130
24M
24.00 mi14:26:433:33:178:539:24
9:24
#18178
40K
24.85 mi14:34:443:41:188:548:01
9:23
#18166
25.2M
25.20 mi14:38:043:44:388:553:20
9:40
#18145
Finish
26.22 mi14:46:483:53:228:548:44
8:34
#18059
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi188167084708418579(Top 70%)6852(Top 60%)6852(Top 365%)
10K6.21 mi3.10 mi18732+846968+1166968+11618775(Top 71%)6945(Top 61%)6945(Top 370%)
15K9.32 mi3.11 mi18647+856912+566912+5618579(Top 70%)6852(Top 60%)6852(Top 365%)
20K12.43 mi3.11 mi18664-176911+16911+118707(Top 70%)6912(Top 61%)6912(Top 368%)
Half13.11 mi0.68 mi18669-56917-66917-618950(Top 71%)7049(Top 62%)7049(Top 375%)
25K15.53 mi2.42 mi18860-1917044-1277044-12719715(Top 74%)7537(Top 66%)7537(Top 401%)
30K18.64 mi3.11 mi18663+1976950+946950+9417776(Top 67%)6511(Top 57%)6511(Top 347%)
20M20.00 mi1.36 mi18522+1416882+686882+6817151(Top 64%)6260(Top 55%)6260(Top 333%)
21M21.00 mi1.00 mi18259+2636755+1276755+12713933(Top 52%)4466(Top 39%)4466(Top 238%)
35K21.75 mi0.75 mi18191+686719+366719+3616979(Top 64%)6273(Top 55%)6273(Top 334%)
23M23.00 mi1.25 mi18130+616689+306689+3017191(Top 65%)6393(Top 56%)6393(Top 340%)
24M24.00 mi1.00 mi18178-486730-416730-4118862(Top 71%)7365(Top 64%)7365(Top 392%)
40K24.85 mi0.85 mi18166+126733-36733-317868(Top 67%)6876(Top 60%)6876(Top 366%)
25.2M25.20 mi0.35 mi18145+216727+66727+616030(Top 60%)5894(Top 52%)5894(Top 314%)
Finish26.22 mi1.02 mi18059+866688+396688+3915859(Top 60%)5738(Top 50%)5738(Top 306%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

18579

Females

6852

F40-44

6852

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

18775

Females

6945

F40-44

6945

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

18579

Females

6852

F40-44

6852

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18707

Females

6912

F40-44

6912

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

18950

Females

7049

F40-44

7049

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19715

Females

7537

F40-44

7537

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17776

Females

6511

F40-44

6511

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

17151

Females

6260

F40-44

6260

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

13933

Females

4466

F40-44

4466

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

16979

Females

6273

F40-44

6273

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

17191

Females

6393

F40-44

6393

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

18862

Females

7365

F40-44

7365

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17868

Females

6876

F40-44

6876

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16030

Females

5894

F40-44

5894

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

15859

Females

5738

F40-44

5738

Passing Analysis

Category:
Athletes Passed
1997
Passed By
1240
Net Change
+757
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18816
5K → 10K402318+84#18816#18732
10K → 15K223138+85#18732#18647
15K → 20K154171-17#18647#18664
20K → Half2631-5#18664#18669
Half → 25K70261-191#18669#18860
25K → 30K27174+197#18860#18663
30K → 20M16726+141#18663#18522
20M → 21M2652+263#18522#18259
21M → 35K9022+68#18259#18191
35K → 23M10140+61#18191#18130
23M → 24M3482-48#18130#18178
24M → 40K5644+12#18178#18166
40K → 25.2M309+21#18166#18145
25.2M → Finish10822+86#18145#18059
TOTALS19971240+757
📊

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