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BOSTON MARATHON 2023

Erin Ding

Bib: 18296•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 38%
Masters (Masters Women)
#0 / 6539
Top 25%
Division (F40-44)
#0 / 1878
Top 45%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:53
Rank: #16363
Start → 5K
25:53 | 8:20/mi
10K· 6.21 mi
50:38
Rank: #15446 (+917)
5K → 10K
24:45 | 7:58/mi
15K· 9.32 mi
1:15:33
Rank: #15154 (+292)
10K → 15K
24:55 | 8:01/mi
20K· 12.43 mi
1:41:12
Rank: #15204 (-50)
15K → 20K
25:39 | 8:15/mi
Half· 13.11 mi
1:46:42
Rank: #15176 (+28)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:06:29
Rank: #14930 (+246)
Half → 25K
19:47 | 8:10/mi
30K· 18.64 mi
2:32:49
Rank: #14796 (+134)
25K → 30K
26:20 | 8:29/mi
20M
2:44:48
Rank: #14839 (-43)
30K → 20M
11:59 | 8:49/mi
21M
2:53:56
Rank: #14777 (+62)
20M → 21M
9:08 | 9:08/mi
35K· 21.75 mi
3:00:07
Rank: #14724 (+53)
21M → 35K
6:11 | 8:16/mi
23M
3:10:32
Rank: #14560 (+164)
35K → 23M
10:25 | 8:19/mi
24M
3:18:35
Rank: #14408 (+152)
23M → 24M
8:03 | 8:03/mi
40K· 24.85 mi
3:25:35
Rank: #14282 (+126)
24M → 40K
7:00 | 8:11/mi
25.2M
3:28:40
Rank: #14240 (+42)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:36:45
Rank: #14120 (+120)
25.2M → Finish
8:05 | 7:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:42
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:50:03
Pace8:24 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2125:538:2025:53
8:20
-
10K
6.21 mi11:42:0650:388:0924:45
7:58
-0:22
15K
9.32 mi12:07:011:15:338:0624:55
8:01
+0:03
20K
12.43 mi12:32:401:41:128:0925:39
8:15
+0:14
Half
13.11 mi12:38:101:46:428:085:30
8:04
-0:11
25K
15.53 mi12:57:572:06:298:0919:47
8:10
+0:06
30K
18.64 mi13:24:172:32:498:1226:20
8:29
+0:19
20M
20.00 mi13:36:162:44:488:1411:59
8:49
+0:20
21M
21.00 mi13:45:242:53:568:179:08
9:08
+0:19
35K
21.75 mi13:51:353:00:078:176:11
8:16
-0:52
23M
23.00 mi14:02:003:10:328:1710:25
8:19
+0:03
24M
24.00 mi14:10:033:18:358:168:03
8:03
-0:16
40K
24.85 mi14:17:033:25:358:167:00
8:11
+0:08
25.2M
25.20 mi14:20:083:28:408:173:05
8:56
+0:45
Finish
26.22 mi14:28:133:36:458:168:05
7:56
-1:00

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

7:56 /mi

Average Pace

8:16 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:33

89% of race

Time at Steady Pace

24:12

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:16 /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 mi11:17:2125:538:2025:53
8:20
#16363
10K
6.21 mi11:42:0650:388:0924:45
7:58
#15446
15K
9.32 mi12:07:011:15:338:0624:55
8:01
#15154
20K
12.43 mi12:32:401:41:128:0925:39
8:15
#15204
Half
13.11 mi12:38:101:46:428:085:30
8:04
#15176
25K
15.53 mi12:57:572:06:298:0919:47
8:10
#14930
30K
18.64 mi13:24:172:32:498:1226:20
8:29
#14796
20M
20.00 mi13:36:162:44:488:1411:59
8:49
#14839
21M
21.00 mi13:45:242:53:568:179:08
9:08
#14777
35K
21.75 mi13:51:353:00:078:176:11
8:16
#14724
23M
23.00 mi14:02:003:10:328:1710:25
8:19
#14560
24M
24.00 mi14:10:033:18:358:168:03
8:03
#14408
40K
24.85 mi14:17:033:25:358:167:00
8:11
#14282
25.2M
25.20 mi14:20:083:28:408:173:05
8:56
#14240
Finish
26.22 mi14:28:133:36:458:168:05
7:56
#14120
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi163635506550614554(Top 55%)4418(Top 39%)4418(Top 235%)
10K6.21 mi3.10 mi15446+9174932+5744932+57414551(Top 55%)4387(Top 38%)4387(Top 234%)
15K9.32 mi3.11 mi15154+2924756+1764756+17614554(Top 55%)4418(Top 39%)4418(Top 235%)
20K12.43 mi3.11 mi15204-504811-554811-5515319(Top 58%)4910(Top 43%)4910(Top 261%)
Half13.11 mi0.68 mi15176+284792+194792+1914899(Top 56%)4619(Top 40%)4619(Top 246%)
25K15.53 mi2.42 mi14930+2464664+1284664+12813957(Top 52%)4193(Top 37%)4193(Top 223%)
30K18.64 mi3.11 mi14796+1344617+474617+4714162(Top 53%)4428(Top 39%)4428(Top 236%)
20M20.00 mi1.36 mi14839-434662-454662-4515532(Top 58%)5289(Top 46%)5289(Top 282%)
21M21.00 mi1.00 mi14777+624649+134649+1314139(Top 53%)4559(Top 40%)4559(Top 243%)
35K21.75 mi0.75 mi14724+534638+114638+1113934(Top 52%)4525(Top 40%)4525(Top 241%)
23M23.00 mi1.25 mi14560+1644563+754563+7512073(Top 45%)3562(Top 31%)3562(Top 190%)
24M24.00 mi1.00 mi14408+1524497+664497+6611626(Top 44%)3404(Top 30%)3404(Top 181%)
40K24.85 mi0.85 mi14282+1264444+534444+5311326(Top 43%)3335(Top 29%)3335(Top 178%)
25.2M25.20 mi0.35 mi14240+424431+134431+1312253(Top 46%)3866(Top 34%)3866(Top 206%)
Finish26.22 mi1.02 mi14120+1204371+604371+6011663(Top 44%)3534(Top 31%)3534(Top 188%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

14554

Females

4418

F40-44

4418

5K→10K

3.1 - 6.2 mi

Top 55%
×5stories
+79ft-138ft

Overall

14551

Females

4387

F40-44

4387

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

14554

Females

4418

F40-44

4418

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

15319

Females

4910

F40-44

4910

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

14899

Females

4619

F40-44

4619

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

13957

Females

4193

F40-44

4193

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

14162

Females

4428

F40-44

4428

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

15532

Females

5289

F40-44

5289

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14139

Females

4559

F40-44

4559

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

13934

Females

4525

F40-44

4525

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12073

Females

3562

F40-44

3562

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

11626

Females

3404

F40-44

3404

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11326

Females

3335

F40-44

3335

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12253

Females

3866

F40-44

3866

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11663

Females

3534

F40-44

3534

Passing Analysis

Category:
Athletes Passed
2995
Passed By
752
Net Change
+2243
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16363
5K → 10K97659+917#16363#15446
10K → 15K35967+292#15446#15154
15K → 20K173223-50#15154#15204
20K → Half5325+28#15204#15176
Half → 25K27428+246#15176#14930
25K → 30K235101+134#14930#14796
30K → 20M70113-43#14796#14839
20M → 21M11149+62#14839#14777
21M → 35K7623+53#14777#14724
35K → 23M18016+164#14724#14560
23M → 24M16412+152#14560#14408
24M → 40K13812+126#14408#14282
40K → 25.2M486+42#14282#14240
25.2M → Finish13818+120#14240#14120
TOTALS2995752+2243
📊

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