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BOSTON MARATHON 2023

Heidi Gray Berkley

MA

Bib: 31814 F

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
9:36/mi
29:49
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:58/mi
57:39
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:55/mi
1:25:21
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:59/mi
1:53:15
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:49/mi
1:59:16
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:59/mi
2:21:02
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:09/mi
2:49:27
↑ 181↓ 1480.2%
138 ft elev
20M
9:03/mi
3:01:45
↑ 64↓ 500.2%
148 ft elev
21M
9:19/mi
3:11:04
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:40/mi
3:17:33
↑ 17↓ 861.7%
156 ft elev
23M
8:54/mi
3:28:42
↑ 23↓ 630.6%
116 ft elev
24M
8:38/mi
3:37:20
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:43/mi
3:44:47
↓ 200.3%
20 ft elev
25.2M
9:17/mi
3:47:59
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:06/mi
3:56:14
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:59:16
Pace9:06 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:56:58
Pace8:55 /mi
📊Negative Split: 1.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:4129:499:3629:49
9:36
-
10K
6.21 mi12:17:3157:399:1727:50
8:58
-0:38
15K
9.32 mi12:45:131:25:219:0927:42
8:55
-0:03
20K
12.43 mi13:13:071:53:159:0727:54
8:59
+0:04
Half
13.11 mi13:19:081:59:169:066:01
8:49
-0:10
25K
15.53 mi13:40:542:21:029:0521:46
8:59
+0:10
30K
18.64 mi14:09:192:49:279:0528:25
9:09
+0:10
20M
20.00 mi14:21:373:01:459:0512:18
9:03
-0:06
21M
21.00 mi14:30:563:11:049:069:19
9:19
+0:16
35K
21.75 mi14:37:253:17:339:056:29
8:40
-0:39
23M
23.00 mi14:48:343:28:429:0411:09
8:54
+0:14
24M
24.00 mi14:57:123:37:209:038:38
8:38
-0:16
40K
24.85 mi15:04:393:44:479:037:27
8:43
+0:05
25.2M
25.20 mi15:07:513:47:599:033:12
9:17
+0:34
Finish
26.22 mi15:16:063:56:149:018:15
8:06
-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

8:06 /mi

Average Pace

9:01 /mi

Slowest Pace

9:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

47:59

20% of race

Time at Steady Pace

2:38:26

67% of race

Time at Slower Pace

29:49

13% of race

Average Pace: 9:01 /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 mi11:49:4129:499:3629:49
9:36
#22367
10K
6.21 mi12:17:3157:399:1727:50
8:58
#21661
15K
9.32 mi12:45:131:25:219:0927:42
8:55
#21229
20K
12.43 mi13:13:071:53:159:0727:54
8:59
#20831
Half
13.11 mi13:19:081:59:169:066:01
8:49
#20765
25K
15.53 mi13:40:542:21:029:0521:46
8:59
#20467
30K
18.64 mi14:09:192:49:279:0528:25
9:09
#20007
20M
20.00 mi14:21:373:01:459:0512:18
9:03
#19753
21M
21.00 mi14:30:563:11:049:069:19
9:19
#19506
35K
21.75 mi14:37:253:17:339:056:29
8:40
#19384
23M
23.00 mi14:48:343:28:429:0411:09
8:54
#19188
24M
24.00 mi14:57:123:37:209:038:38
8:38
#19030
40K
24.85 mi15:04:393:44:479:037:27
8:43
#18872
25.2M
25.20 mi15:07:513:47:599:033:12
9:17
#18802
Finish
26.22 mi15:16:063:56:149:018:15
8:06
#18606
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi223679055905520110(Top 76%)7733(Top 68%)7733(Top 158%)
10K6.21 mi3.10 mi21661+7068669+3868669+38620713(Top 78%)8097(Top 71%)8097(Top 166%)
15K9.32 mi3.11 mi21229+4328404+2658404+26520110(Top 76%)7733(Top 68%)7733(Top 158%)
20K12.43 mi3.11 mi20831+3988177+2278177+22719602(Top 74%)7437(Top 65%)7437(Top 152%)
Half13.11 mi0.68 mi20765+668143+348143+3419608(Top 74%)7436(Top 65%)7436(Top 152%)
25K15.53 mi2.42 mi20467+2987962+1817962+18118851(Top 71%)7045(Top 62%)7045(Top 144%)
30K18.64 mi3.11 mi20007+4607734+2287734+22817921(Top 67%)6606(Top 58%)6606(Top 135%)
20M20.00 mi1.36 mi19753+2547592+1427592+14216838(Top 63%)6063(Top 53%)6063(Top 124%)
21M21.00 mi1.00 mi19506+2477461+1317461+13115126(Top 57%)5143(Top 45%)5143(Top 105%)
35K21.75 mi0.75 mi19384+1227394+677394+6716298(Top 61%)5883(Top 52%)5883(Top 120%)
23M23.00 mi1.25 mi19188+1967288+1067288+10615599(Top 59%)5518(Top 48%)5518(Top 113%)
24M24.00 mi1.00 mi19030+1587215+737215+7315326(Top 58%)5438(Top 48%)5438(Top 111%)
40K24.85 mi0.85 mi18872+1587131+847131+8414655(Top 55%)5129(Top 45%)5129(Top 105%)
25.2M25.20 mi0.35 mi18802+707107+247107+2414196(Top 53%)4880(Top 43%)4880(Top 100%)
Finish26.22 mi1.02 mi18606+1966996+1116996+11112804(Top 48%)4128(Top 36%)4128(Top 85%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

20110

Females

7733

F18-39

7733

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

20713

Females

8097

F18-39

8097

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

20110

Females

7733

F18-39

7733

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

19602

Females

7437

F18-39

7437

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

19608

Females

7436

F18-39

7436

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

18851

Females

7045

F18-39

7045

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17921

Females

6606

F18-39

6606

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16838

Females

6063

F18-39

6063

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

15126

Females

5143

F18-39

5143

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

16298

Females

5883

F18-39

5883

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

15599

Females

5518

F18-39

5518

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

15326

Females

5438

F18-39

5438

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14655

Females

5129

F18-39

5129

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14196

Females

4880

F18-39

4880

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12804

Females

4128

F18-39

4128

Passing Analysis

Category:
Athletes Passed
3910
Passed By
149
Net Change
+3761
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22367
5K → 10K76357+706#22367#21661
10K → 15K45119+432#21661#21229
15K → 20K42224+398#21229#20831
20K → Half737+66#20831#20765
Half → 25K3079+298#20765#20467
25K → 30K4677+460#20467#20007
30K → 20M2540+254#20007#19753
20M → 21M2481+247#19753#19506
21M → 35K1286+122#19506#19384
35K → 23M2015+196#19384#19188
23M → 24M1657+158#19188#19030
24M → 40K1580+158#19030#18872
40K → 25.2M722+70#18872#18802
25.2M → Finish2015+196#18802#18606
TOTALS3910149+3761
📊

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