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BOSTON MARATHON 2023

Erica Thill

Bib: 29004•F

NY

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
29:00
Rank: #21638
Start → 5K
29:00 | 9:20/mi
10K· 6.21 mi
56:03
Rank: #20722 (+916)
5K → 10K
27:03 | 8:42/mi
15K· 9.32 mi
1:23:37
Rank: #20446 (+276)
10K → 15K
27:34 | 8:52/mi
20K· 12.43 mi
1:52:04
Rank: #20444 (+2)
15K → 20K
28:27 | 9:09/mi
Half· 13.11 mi
1:58:10
Rank: #20432 (+12)
20K → Half
6:06 | 8:56/mi
25K· 15.53 mi
2:21:39
Rank: #20641 (-209)
Half → 25K
23:29 | 9:41/mi
30K· 18.64 mi
2:52:10
Rank: #20593 (+48)
25K → 30K
30:31 | 9:49/mi
20M
3:06:14
Rank: #20644 (-51)
30K → 20M
14:04 | 10:21/mi
21M
3:17:03
Rank: #20627 (+17)
20M → 21M
10:49 | 10:49/mi
35K· 21.75 mi
3:24:03
Rank: #20571 (+56)
21M → 35K
7:00 | 9:21/mi
23M
3:36:15
Rank: #20469 (+102)
35K → 23M
12:12 | 9:45/mi
24M
3:45:32
Rank: #20385 (+84)
23M → 24M
9:17 | 9:17/mi
40K· 24.85 mi
3:53:43
Rank: #20315 (+70)
24M → 40K
8:11 | 9:34/mi
25.2M
3:57:24
Rank: #20296 (+19)
40K → 25.2M
3:41 | 10:41/mi
Finish· 26.22 mi
4:07:05
Rank: #20277 (+19)
25.2M → Finish
9:41 | 9:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:10
Pace9:01 /mi
2nd Half
Distance13.11 mi
Time2:08:55
Pace9:50 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:0829:009:2029:00
9:20
-
10K
6.21 mi12:15:1156:039:0127:03
8:42
-0:38
15K
9.32 mi12:42:451:23:378:5827:34
8:52
+0:10
20K
12.43 mi13:11:121:52:049:0128:27
9:09
+0:17
Half
13.11 mi13:17:181:58:109:016:06
8:56
-0:13
25K
15.53 mi13:40:472:21:399:0723:29
9:41
+0:45
30K
18.64 mi14:11:182:52:109:1430:31
9:49
+0:08
20M
20.00 mi14:25:223:06:149:1914:04
10:21
+0:32
21M
21.00 mi14:36:113:17:039:2310:49
10:49
+0:28
35K
21.75 mi14:43:113:24:039:237:00
9:21
-1:28
23M
23.00 mi14:55:233:36:159:2412:12
9:45
+0:24
24M
24.00 mi15:04:403:45:329:249:17
9:17
-0:28
40K
24.85 mi15:12:513:53:439:248:11
9:34
+0:17
25.2M
25.20 mi15:16:323:57:249:253:41
10:41
+1:07
Finish
26.22 mi15:26:134:07:059:269:41
9:30
-1:11

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

8:42 /mi

Average Pace

9:26 /mi

Slowest Pace

10:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:10

36% of race

Time at Steady Pace

1:38:50

40% of race

Time at Slower Pace

59:05

24% of race

Average Pace: 9:25 /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 mi11:48:0829:009:2029:00
9:20
#21638
10K
6.21 mi12:15:1156:039:0127:03
8:42
#20722
15K
9.32 mi12:42:451:23:378:5827:34
8:52
#20446
20K
12.43 mi13:11:121:52:049:0128:27
9:09
#20444
Half
13.11 mi13:17:181:58:109:016:06
8:56
#20432
25K
15.53 mi13:40:472:21:399:0723:29
9:41
#20641
30K
18.64 mi14:11:182:52:109:1430:31
9:49
#20593
20M
20.00 mi14:25:223:06:149:1914:04
10:21
#20644
21M
21.00 mi14:36:113:17:039:2310:49
10:49
#20627
35K
21.75 mi14:43:113:24:039:237:00
9:21
#20571
23M
23.00 mi14:55:233:36:159:2412:12
9:45
#20469
24M
24.00 mi15:04:403:45:329:249:17
9:17
#20385
40K
24.85 mi15:12:513:53:439:248:11
9:34
#20315
25.2M
25.20 mi15:16:323:57:249:253:41
10:41
#20296
Finish
26.22 mi15:26:134:07:059:269:41
9:30
#20277
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi216388712871219924(Top 75%)7641(Top 67%)7641(Top 156%)
10K6.21 mi3.10 mi20722+9168156+5568156+55619478(Top 73%)7372(Top 65%)7372(Top 151%)
15K9.32 mi3.11 mi20446+2767987+1697987+16919924(Top 75%)7641(Top 67%)7641(Top 156%)
20K12.43 mi3.11 mi20444+27971+167971+1620403(Top 77%)7906(Top 69%)7906(Top 162%)
Half13.11 mi0.68 mi20432+127959+127959+1220236(Top 76%)7807(Top 68%)7807(Top 160%)
25K15.53 mi2.42 mi20641-2098066-1078066-10721410(Top 80%)8505(Top 74%)8505(Top 174%)
30K18.64 mi3.11 mi20593+488059+78059+720519(Top 77%)8067(Top 71%)8067(Top 165%)
20M20.00 mi1.36 mi20644-518101-428101-4221405(Top 80%)8641(Top 76%)8641(Top 177%)
21M21.00 mi1.00 mi20627+178097+48097+420422(Top 77%)8157(Top 71%)8157(Top 167%)
35K21.75 mi0.75 mi20571+568075+228075+2219397(Top 73%)7605(Top 67%)7605(Top 156%)
23M23.00 mi1.25 mi20469+1028037+388037+3819245(Top 72%)7553(Top 66%)7553(Top 155%)
24M24.00 mi1.00 mi20385+847996+417996+4118418(Top 69%)7125(Top 62%)7125(Top 146%)
40K24.85 mi0.85 mi20315+707968+287968+2818594(Top 70%)7274(Top 64%)7274(Top 149%)
25.2M25.20 mi0.35 mi20296+197962+67962+619682(Top 74%)7890(Top 69%)7890(Top 162%)
Finish26.22 mi1.02 mi20277+197959+37959+320148(Top 76%)8084(Top 71%)8084(Top 166%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

19924

Females

7641

F18-39

7641

5K→10K

3.1 - 6.2 mi

Top 73%
×5stories
+79ft-138ft

Overall

19478

Females

7372

F18-39

7372

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

19924

Females

7641

F18-39

7641

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

20403

Females

7906

F18-39

7906

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

20236

Females

7807

F18-39

7807

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

21410

Females

8505

F18-39

8505

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

20519

Females

8067

F18-39

8067

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

21405

Females

8641

F18-39

8641

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

20422

Females

8157

F18-39

8157

21M→35K

21.0 - 21.8 mi

Top 73%
×7stories
+17ft-86ft

Overall

19397

Females

7605

F18-39

7605

35K→23M

21.8 - 23.0 mi

Top 72%
×5stories
+23ft-63ft

Overall

19245

Females

7553

F18-39

7553

23M→24M

23.0 - 24.0 mi

Top 69%
×6stories
+12ft-82ft

Overall

18418

Females

7125

F18-39

7125

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18594

Females

7274

F18-39

7274

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19682

Females

7890

F18-39

7890

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

20148

Females

8084

F18-39

8084

Passing Analysis

Category:
Athletes Passed
2282
Passed By
921
Net Change
+1361
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21638
5K → 10K95842+916#21638#20722
10K → 15K34064+276#20722#20446
15K → 20K166164+2#20446#20444
20K → Half3321+12#20444#20432
Half → 25K39248-209#20432#20641
25K → 30K169121+48#20641#20593
30K → 20M4798-51#20593#20644
20M → 21M8467+17#20644#20627
21M → 35K6913+56#20627#20571
35K → 23M12018+102#20571#20469
23M → 24M9511+84#20469#20385
24M → 40K8313+70#20385#20315
40K → 25.2M3011+19#20315#20296
25.2M → Finish4930+19#20296#20277
TOTALS2282921+1361
📊

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