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BOSTON MARATHON 2023

Heather Gladwin

Bib: 14179•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 45%
Gender (Female)
#0 / 11423
Top 28%
Division (F18-39)
#0 / 4884
Top 45%
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
7:32/mi
23:23
↑ 97↓ 3451.5%
10K· 6.21 mi
7:26/mi
46:30
↑ 79↓ 1380.4%
15K· 9.32 mi
7:42/mi
1:10:24
↑ 67↓ 78
20K· 12.43 mi
7:54/mi
1:34:56
↑ 106↓ 860.1%
Half· 13.11 mi
7:46/mi
1:40:14
↑ 19↓ 370.5%
25K· 15.53 mi
7:57/mi
1:59:30
↑ 66↓ 880.2%
30K· 18.64 mi
8:17/mi
2:25:14
↑ 181↓ 1480.2%
20M
8:37/mi
2:36:57
↑ 64↓ 500.2%
21M
9:00/mi
2:45:57
↑ 106↓ 241.6%
35K· 21.75 mi
8:20/mi
2:52:11
↑ 17↓ 861.7%
23M
8:25/mi
3:02:43
↑ 23↓ 630.6%
24M
8:15/mi
3:10:58
↓ 821.3%
40K· 24.85 mi
8:23/mi
3:18:08
↓ 200.3%
25.2M
9:05/mi
3:21:16
↑ 13↓ 160.2%
Finish· 26.22 mi
8:01/mi
3:29:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:14
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:49:12
Pace8:20 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1423:237:3223:23
7:32
-
10K
6.21 mi11:15:2146:307:2923:07
7:26
-0:06
15K
9.32 mi11:39:151:10:247:3323:54
7:42
+0:16
20K
12.43 mi12:03:471:34:567:3824:32
7:54
+0:12
Half
13.11 mi12:09:051:40:147:395:18
7:46
-0:08
25K
15.53 mi12:28:211:59:307:4219:16
7:57
+0:11
30K
18.64 mi12:54:052:25:147:4725:44
8:17
+0:20
20M
20.00 mi13:05:482:36:577:5111:43
8:37
+0:20
21M
21.00 mi13:14:482:45:577:549:00
9:00
+0:23
35K
21.75 mi13:21:022:52:117:556:14
8:20
-0:40
23M
23.00 mi13:31:343:02:437:5710:32
8:25
+0:05
24M
24.00 mi13:39:493:10:587:578:15
8:15
-0:10
40K
24.85 mi13:46:593:18:087:587:10
8:23
+0:08
25.2M
25.20 mi13:50:073:21:167:593:08
9:05
+0:42
Finish
26.22 mi13:58:173:29:268:008:10
8:01
-1:04

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

7:26 /mi

Average Pace

8:00 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:30

57% of race

Time at Steady Pace

1:06:05

32% of race

Time at Slower Pace

23:51

11% of race

Average Pace: 7:59 /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 mi10:52:1423:237:3223:23
7:32
#9877
10K
6.21 mi11:15:2146:307:2923:07
7:26
#9877
15K
9.32 mi11:39:151:10:247:3323:54
7:42
#10534
20K
12.43 mi12:03:471:34:567:3824:32
7:54
#11024
Half
13.11 mi12:09:051:40:147:395:18
7:46
#11092
25K
15.53 mi12:28:211:59:307:4219:16
7:57
#11242
30K
18.64 mi12:54:052:25:147:4725:44
8:17
#11537
20M
20.00 mi13:05:482:36:577:5111:43
8:37
#11773
21M
21.00 mi13:14:482:45:577:549:00
9:00
#11887
35K
21.75 mi13:21:022:52:117:556:14
8:20
#11973
23M
23.00 mi13:31:343:02:437:5710:32
8:25
#12009
24M
24.00 mi13:39:493:10:587:578:15
8:15
#12052
40K
24.85 mi13:46:593:18:087:587:10
8:23
#12068
25.2M
25.20 mi13:50:073:21:167:593:08
9:05
#12073
Finish
26.22 mi13:58:173:29:268:008:10
8:01
#12082
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi98771803180311802(Top 44%)2796(Top 24%)2796(Top 57%)
10K6.21 mi3.10 mi98771785+181785+1810002(Top 38%)1823(Top 16%)1823(Top 37%)
15K9.32 mi3.11 mi10534-6572083-2982083-29811802(Top 44%)2796(Top 24%)2796(Top 57%)
20K12.43 mi3.11 mi11024-4902342-2592342-25912597(Top 47%)3314(Top 29%)3314(Top 68%)
Half13.11 mi0.68 mi11092-682381-392381-3912498(Top 47%)3201(Top 28%)3201(Top 66%)
25K15.53 mi2.42 mi11242-1502498-1172498-11712290(Top 46%)3244(Top 28%)3244(Top 66%)
30K18.64 mi3.11 mi11537-2952708-2102708-21012920(Top 49%)3704(Top 32%)3704(Top 76%)
20M20.00 mi1.36 mi11773-2362864-1562864-15614406(Top 54%)4640(Top 41%)4640(Top 95%)
21M21.00 mi1.00 mi11887-1142948-842948-8413411(Top 50%)4156(Top 36%)4156(Top 85%)
35K21.75 mi0.75 mi11973-863006-583006-5814289(Top 54%)4706(Top 41%)4706(Top 96%)
23M23.00 mi1.25 mi12009-363068-623068-6212673(Top 48%)3886(Top 34%)3886(Top 80%)
24M24.00 mi1.00 mi12052-433109-413109-4112949(Top 49%)4101(Top 36%)4101(Top 84%)
40K24.85 mi0.85 mi12068-163140-313140-3112596(Top 47%)3988(Top 35%)3988(Top 82%)
25.2M25.20 mi0.35 mi12073-53150-103150-1013037(Top 49%)4235(Top 37%)4235(Top 87%)
Finish26.22 mi1.02 mi12082-93171-213171-2112246(Top 46%)3830(Top 34%)3830(Top 78%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11802

Females

2796

F18-39

2796

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10002

Females

1823

F18-39

1823

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11802

Females

2796

F18-39

2796

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

12597

Females

3314

F18-39

3314

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

12498

Females

3201

F18-39

3201

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

12290

Females

3244

F18-39

3244

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

12920

Females

3704

F18-39

3704

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

14406

Females

4640

F18-39

4640

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

13411

Females

4156

F18-39

4156

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

14289

Females

4706

F18-39

4706

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

12673

Females

3886

F18-39

3886

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

12949

Females

4101

F18-39

4101

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12596

Females

3988

F18-39

3988

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13037

Females

4235

F18-39

4235

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12246

Females

3830

F18-39

3830

Passing Analysis

Category:
Athletes Passed
991
Passed By
3194
Net Change
-2205
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9877
5K → 10K3153150#9877#9877
10K → 15K43698-657#9877#10534
15K → 20K42532-490#10534#11024
20K → Half1179-68#11024#11092
Half → 25K81231-150#11092#11242
25K → 30K94389-295#11242#11537
30K → 20M43279-236#11537#11773
20M → 21M54168-114#11773#11887
21M → 35K26112-86#11887#11973
35K → 23M78114-36#11973#12009
23M → 24M5497-43#12009#12052
24M → 40K5773-16#12052#12068
40K → 25.2M2631-5#12068#12073
25.2M → Finish6776-9#12073#12082
TOTALS9913194-2205
📊

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