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BOSTON MARATHON 2023

Erin Hamlin

Bib: 24857•F

MA

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

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
10:32/mi
32:45
↑ 97↓ 3451.5%
10K· 6.21 mi
10:23/mi
1:05:02
↑ 79↓ 1380.4%
15K· 9.32 mi
10:23/mi
1:37:18
↑ 67↓ 78
20K· 12.43 mi
10:24/mi
2:09:37
↑ 106↓ 860.1%
Half· 13.11 mi
10:19/mi
2:16:39
↑ 19↓ 370.5%
25K· 15.53 mi
10:27/mi
2:41:59
↑ 66↓ 880.2%
30K· 18.64 mi
10:44/mi
3:15:20
↑ 181↓ 1480.2%
20M
10:39/mi
3:29:49
↑ 64↓ 500.2%
21M
11:33/mi
3:41:22
↑ 106↓ 241.6%
35K· 21.75 mi
10:39/mi
3:49:20
↑ 17↓ 861.7%
23M
10:34/mi
4:02:34
↑ 23↓ 630.6%
24M
10:38/mi
4:13:12
↓ 821.3%
40K· 24.85 mi
10:35/mi
4:22:15
↓ 200.3%
25.2M
11:10/mi
4:26:06
↑ 13↓ 160.2%
Finish· 26.22 mi
9:54/mi
4:36:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:39
Pace10:25 /mi
2nd Half
Distance13.11 mi
Time2:19:32
Pace10:39 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:3932:4510:3232:45
10:32
-
10K
6.21 mi12:25:561:05:0210:2832:17
10:23
-0:09
15K
9.32 mi12:58:121:37:1810:2632:16
10:23
0:00
20K
12.43 mi13:30:312:09:3710:2632:19
10:24
+0:01
Half
13.11 mi13:37:332:16:3910:257:02
10:19
-0:05
25K
15.53 mi14:02:532:41:5910:2625:20
10:27
+0:08
30K
18.64 mi14:36:143:15:2010:2933:21
10:44
+0:17
20M
20.00 mi14:50:433:29:4910:2914:29
10:39
-0:05
21M
21.00 mi15:02:163:41:2210:3211:33
11:33
+0:54
35K
21.75 mi15:10:143:49:2010:337:58
10:39
-0:54
23M
23.00 mi15:23:284:02:3410:3313:14
10:34
-0:05
24M
24.00 mi15:34:064:13:1210:3310:38
10:38
+0:04
40K
24.85 mi15:43:094:22:1510:339:03
10:35
-0:03
25.2M
25.20 mi15:47:004:26:0610:343:51
11:10
+0:35
Finish
26.22 mi15:57:054:36:1110:3210:05
9:54
-1:16

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

9:54 /mi

Average Pace

10:32 /mi

Slowest Pace

11:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:20:47

94% of race

Time at Steady Pace

15:24

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:32 /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 mi11:53:3932:4510:3232:45
10:32
#24804
10K
6.21 mi12:25:561:05:0210:2832:17
10:23
#24653
15K
9.32 mi12:58:121:37:1810:2632:16
10:23
#24522
20K
12.43 mi13:30:312:09:3710:2632:19
10:24
#24290
Half
13.11 mi13:37:332:16:3910:257:02
10:19
#24261
25K
15.53 mi14:02:532:41:5910:2625:20
10:27
#24039
30K
18.64 mi14:36:143:15:2010:2933:21
10:44
#23772
20M
20.00 mi14:50:433:29:4910:2914:29
10:39
#23630
21M
21.00 mi15:02:163:41:2210:3211:33
11:33
#23564
35K
21.75 mi15:10:143:49:2010:337:58
10:39
#23539
23M
23.00 mi15:23:284:02:3410:3313:14
10:34
#23443
24M
24.00 mi15:34:064:13:1210:3310:38
10:38
#23394
40K
24.85 mi15:43:094:22:1510:339:03
10:35
#23331
25.2M
25.20 mi15:47:004:26:0610:343:51
11:10
#23285
Finish
26.22 mi15:57:054:36:1110:3210:05
9:54
#23222
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24804103271032724255(Top 91%)10031(Top 88%)10031(Top 205%)
10K6.21 mi3.10 mi24653+15110240+8710240+8724478(Top 92%)10154(Top 89%)10154(Top 208%)
15K9.32 mi3.11 mi24522+13110173+6710173+6724255(Top 91%)10031(Top 88%)10031(Top 205%)
20K12.43 mi3.11 mi24290+23210056+11710056+11723665(Top 89%)9724(Top 85%)9724(Top 199%)
Half13.11 mi0.68 mi24261+2910039+1710039+1723869(Top 90%)9842(Top 86%)9842(Top 202%)
25K15.53 mi2.42 mi24039+2229921+1189921+11823095(Top 87%)9441(Top 83%)9441(Top 193%)
30K18.64 mi3.11 mi23772+2679792+1299792+12922671(Top 85%)9286(Top 81%)9286(Top 190%)
20M20.00 mi1.36 mi23630+1429726+669726+6622074(Top 83%)9024(Top 79%)9024(Top 185%)
21M21.00 mi1.00 mi23564+669696+309696+3021973(Top 83%)8976(Top 79%)8976(Top 184%)
35K21.75 mi0.75 mi23539+259688+89688+822680(Top 85%)9410(Top 82%)9410(Top 193%)
23M23.00 mi1.25 mi23443+969653+359653+3521485(Top 81%)8786(Top 77%)8786(Top 180%)
24M24.00 mi1.00 mi23394+499635+189635+1822318(Top 84%)9270(Top 81%)9270(Top 190%)
40K24.85 mi0.85 mi23331+639614+219614+2121437(Top 81%)8866(Top 78%)8866(Top 182%)
25.2M25.20 mi0.35 mi23285+469591+239591+2320882(Top 78%)8534(Top 75%)8534(Top 175%)
Finish26.22 mi1.02 mi23222+639566+259566+2521488(Top 81%)8844(Top 77%)8844(Top 181%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

24255

Females

10031

F18-39

10031

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

24478

Females

10154

F18-39

10154

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

24255

Females

10031

F18-39

10031

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

23665

Females

9724

F18-39

9724

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

23869

Females

9842

F18-39

9842

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23095

Females

9441

F18-39

9441

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

22671

Females

9286

F18-39

9286

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

22074

Females

9024

F18-39

9024

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

21973

Females

8976

F18-39

8976

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

22680

Females

9410

F18-39

9410

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

21485

Females

8786

F18-39

8786

23M→24M

23.0 - 24.0 mi

Top 84%
×6story building
+12ft-82ft

Overall

22318

Females

9270

F18-39

9270

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21437

Females

8866

F18-39

8866

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20882

Females

8534

F18-39

8534

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

21488

Females

8844

F18-39

8844

Passing Analysis

Category:
Athletes Passed
1877
Passed By
295
Net Change
+1582
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24804
5K → 10K272121+151#24804#24653
10K → 15K19160+131#24653#24522
15K → 20K24513+232#24522#24290
20K → Half4112+29#24290#24261
Half → 25K23311+222#24261#24039
25K → 30K28114+267#24039#23772
30K → 20M1464+142#23772#23630
20M → 21M8317+66#23630#23564
21M → 35K3712+25#23564#23539
35K → 23M1037+96#23539#23443
23M → 24M6112+49#23443#23394
24M → 40K718+63#23394#23331
40K → 25.2M460+46#23331#23285
25.2M → Finish674+63#23285#23222
TOTALS1877295+1582
📊

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