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BOSTON MARATHON 2023

Chelsea Goodwin

Bib: 18536•F

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:13
Rank: #14855
Start → 5K
25:13 | 8:07/mi
10K· 6.21 mi
50:33
Rank: #15359 (-504)
5K → 10K
25:20 | 8:09/mi
15K· 9.32 mi
1:16:29
Rank: #15878 (-519)
10K → 15K
25:56 | 8:21/mi
20K· 12.43 mi
1:44:43
Rank: #17122 (-1244)
15K → 20K
28:14 | 9:05/mi
Half· 13.11 mi
1:50:38
Rank: #17195 (-73)
20K → Half
5:55 | 8:40/mi
25K· 15.53 mi
2:12:31
Rank: #17518 (-323)
Half → 25K
21:53 | 9:02/mi
30K· 18.64 mi
2:40:39
Rank: #17480 (+38)
25K → 30K
28:08 | 9:03/mi
20M
2:52:56
Rank: #17394 (+86)
30K → 20M
12:17 | 9:02/mi
21M
3:02:05
Rank: #17210 (+184)
20M → 21M
9:09 | 9:09/mi
35K· 21.75 mi
3:08:13
Rank: #17088 (+122)
21M → 35K
6:08 | 8:12/mi
23M
3:19:19
Rank: #16970 (+118)
35K → 23M
11:06 | 8:52/mi
24M
3:28:04
Rank: #16923 (+47)
23M → 24M
8:45 | 8:45/mi
40K· 24.85 mi
3:35:43
Rank: #16871 (+52)
24M → 40K
7:39 | 8:57/mi
25.2M
3:38:58
Rank: #16839 (+32)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:47:06
Rank: #16641 (+198)
25.2M → Finish
8:08 | 7:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:38
Pace8:26 /mi
2nd Half
Distance13.11 mi
Time1:56:28
Pace8:53 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3125:138:0725:13
8:07
-
10K
6.21 mi11:41:5150:338:0825:20
8:09
+0:02
15K
9.32 mi12:07:471:16:298:1225:56
8:21
+0:12
20K
12.43 mi12:36:011:44:438:2628:14
9:05
+0:44
Half
13.11 mi12:41:561:50:388:265:55
8:40
-0:25
25K
15.53 mi13:03:492:12:318:3221:53
9:02
+0:22
30K
18.64 mi13:31:572:40:398:3728:08
9:03
+0:01
20M
20.00 mi13:44:142:52:568:3912:17
9:02
-0:01
21M
21.00 mi13:53:233:02:058:409:09
9:09
+0:07
35K
21.75 mi13:59:313:08:138:396:08
8:12
-0:57
23M
23.00 mi14:10:373:19:198:4011:06
8:52
+0:40
24M
24.00 mi14:19:223:28:048:408:45
8:45
-0:07
40K
24.85 mi14:27:013:35:438:417:39
8:57
+0:12
25.2M
25.20 mi14:30:163:38:588:413:15
9:25
+0:28
Finish
26.22 mi14:38:243:47:068:408:08
7:59
-1:26

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

7:59 /mi

Average Pace

8:40 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:25

46% of race

Time at Steady Pace

2:01:41

54% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:40 /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 mi11:16:3125:138:0725:13
8:07
#14855
10K
6.21 mi11:41:5150:338:0825:20
8:09
#15359
15K
9.32 mi12:07:471:16:298:1225:56
8:21
#15878
20K
12.43 mi12:36:011:44:438:2628:14
9:05
#17122
Half
13.11 mi12:41:561:50:388:265:55
8:40
#17195
25K
15.53 mi13:03:492:12:318:3221:53
9:02
#17518
30K
18.64 mi13:31:572:40:398:3728:08
9:03
#17480
20M
20.00 mi13:44:142:52:568:3912:17
9:02
#17394
21M
21.00 mi13:53:233:02:058:409:09
9:09
#17210
35K
21.75 mi13:59:313:08:138:396:08
8:12
#17088
23M
23.00 mi14:10:373:19:198:4011:06
8:52
#16970
24M
24.00 mi14:19:223:28:048:408:45
8:45
#16923
40K
24.85 mi14:27:013:35:438:417:39
8:57
#16871
25.2M
25.20 mi14:30:163:38:588:413:15
9:25
#16839
Finish
26.22 mi14:38:243:47:068:408:08
7:59
#16641
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi148554551455116840(Top 63%)5820(Top 51%)5820(Top 119%)
10K6.21 mi3.10 mi15359-5044879-3284879-32815958(Top 60%)5255(Top 46%)5255(Top 108%)
15K9.32 mi3.11 mi15878-5195205-3265205-32616840(Top 63%)5820(Top 51%)5820(Top 119%)
20K12.43 mi3.11 mi17122-12446002-7976002-79720083(Top 75%)7712(Top 68%)7712(Top 158%)
Half13.11 mi0.68 mi17195-736041-396041-3918777(Top 71%)6934(Top 61%)6934(Top 142%)
25K15.53 mi2.42 mi17518-3236245-2046245-20419089(Top 72%)7176(Top 63%)7176(Top 147%)
30K18.64 mi3.11 mi17480+386241+46241+417467(Top 66%)6332(Top 55%)6332(Top 130%)
20M20.00 mi1.36 mi17394+866214+276214+2716755(Top 63%)6006(Top 53%)6006(Top 123%)
21M21.00 mi1.00 mi17210+1846120+946120+9414253(Top 54%)4630(Top 41%)4630(Top 95%)
35K21.75 mi0.75 mi17088+1226052+686052+6813513(Top 51%)4312(Top 38%)4312(Top 88%)
23M23.00 mi1.25 mi16970+1186005+476005+4715382(Top 58%)5391(Top 47%)5391(Top 110%)
24M24.00 mi1.00 mi16923+475994+115994+1115956(Top 60%)5784(Top 51%)5784(Top 118%)
40K24.85 mi0.85 mi16871+525984+105984+1015898(Top 60%)5796(Top 51%)5796(Top 119%)
25.2M25.20 mi0.35 mi16839+325968+165968+1614891(Top 56%)5249(Top 46%)5249(Top 107%)
Finish26.22 mi1.02 mi16641+1985864+1045864+10412048(Top 45%)3746(Top 33%)3746(Top 77%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

16840

Females

5820

F18-39

5820

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

15958

Females

5255

F18-39

5255

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

16840

Females

5820

F18-39

5820

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

20083

Females

7712

F18-39

7712

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

18777

Females

6934

F18-39

6934

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

19089

Females

7176

F18-39

7176

25K→30K

15.5 - 18.6 mi

Top 66%
×9stories
+181ft-148ft

Overall

17467

Females

6332

F18-39

6332

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16755

Females

6006

F18-39

6006

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

14253

Females

4630

F18-39

4630

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

13513

Females

4312

F18-39

4312

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

15382

Females

5391

F18-39

5391

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

15956

Females

5784

F18-39

5784

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

15898

Females

5796

F18-39

5796

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14891

Females

5249

F18-39

5249

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

12048

Females

3746

F18-39

3746

Passing Analysis

Category:
Athletes Passed
1451
Passed By
3237
Net Change
-1786
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14855
5K → 10K122626-504#14855#15359
10K → 15K51570-519#15359#15878
15K → 20K211265-1244#15878#17122
20K → Half780-73#17122#17195
Half → 25K60383-323#17195#17518
25K → 30K184146+38#17518#17480
30K → 20M12337+86#17480#17394
20M → 21M20319+184#17394#17210
21M → 35K1253+122#17210#17088
35K → 23M14426+118#17088#16970
23M → 24M8134+47#16970#16923
24M → 40K8230+52#16923#16871
40K → 25.2M4412+32#16871#16839
25.2M → Finish2046+198#16839#16641
TOTALS14513237-1786
📊

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