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BOSTON MARATHON 2023

Akiko Forman

TX

Bib: 18695 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 48%
Masters (Masters Women)
#0 / 6539
Top 38%
Division (F45-49)
#0 / 1817
Top 44%
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
8:23/mi
26:02
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:20/mi
51:54
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:24/mi
1:17:59
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:29/mi
1:44:20
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:18/mi
1:50:00
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:29/mi
2:10:35
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:53/mi
2:38:12
↑ 181↓ 1480.2%
138 ft elev
20M
8:53/mi
2:50:16
↑ 64↓ 500.2%
148 ft elev
21M
9:13/mi
2:59:29
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:20/mi
3:05:43
↑ 17↓ 861.7%
156 ft elev
23M
8:43/mi
3:16:38
↑ 23↓ 630.6%
116 ft elev
24M
8:27/mi
3:25:05
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:43/mi
3:32:32
↓ 200.3%
20 ft elev
25.2M
9:17/mi
3:35:44
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:31/mi
3:44:25
↑ 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 HalfFaster
Distance13.11 mi
Time1:50:00
Pace8:23 /mi
2nd Half
Distance13.11 mi
Time1:54:25
Pace8:44 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4126:028:2326:02
8:23
-
10K
6.21 mi11:44:3351:548:2125:52
8:20
-0:03
15K
9.32 mi12:10:381:17:598:2226:05
8:24
+0:04
20K
12.43 mi12:36:591:44:208:2426:21
8:29
+0:05
Half
13.11 mi12:42:391:50:008:235:40
8:18
-0:11
25K
15.53 mi13:03:142:10:358:2420:35
8:29
+0:11
30K
18.64 mi13:30:512:38:128:2927:37
8:53
+0:24
20M
20.00 mi13:42:552:50:168:3112:04
8:53
0:00
21M
21.00 mi13:52:082:59:298:339:13
9:13
+0:20
35K
21.75 mi13:58:223:05:438:326:14
8:20
-0:53
23M
23.00 mi14:09:173:16:388:3310:55
8:43
+0:23
24M
24.00 mi14:17:443:25:058:338:27
8:27
-0:16
40K
24.85 mi14:25:113:32:328:337:27
8:43
+0:16
25.2M
25.20 mi14:28:233:35:448:343:12
9:17
+0:34
Finish
26.22 mi14:37:043:44:258:348:41
8:31
-0:46

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

8:18 /mi

Average Pace

8:34 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:32:00

94% of race

Time at Steady Pace

12:25

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:34 /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 mi11:18:4126:028:2326:02
8:23
#16739
10K
6.21 mi11:44:3351:548:2125:52
8:20
#16882
15K
9.32 mi12:10:381:17:598:2226:05
8:24
#16966
20K
12.43 mi12:36:591:44:208:2426:21
8:29
#16906
Half
13.11 mi12:42:391:50:008:235:40
8:18
#16886
25K
15.53 mi13:03:142:10:358:2420:35
8:29
#16780
30K
18.64 mi13:30:512:38:128:2927:37
8:53
#16693
20M
20.00 mi13:42:552:50:168:3112:04
8:53
#16621
21M
21.00 mi13:52:082:59:298:339:13
9:13
#16467
35K
21.75 mi13:58:223:05:438:326:14
8:20
#16387
23M
23.00 mi14:09:173:16:388:3310:55
8:43
#16272
24M
24.00 mi14:17:443:25:058:338:27
8:27
#16151
40K
24.85 mi14:25:113:32:328:337:27
8:43
#16087
25.2M
25.20 mi14:28:233:35:448:343:12
9:17
#16050
Finish
26.22 mi14:37:043:44:258:348:41
8:31
#16032
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi16739575457541712359995999
10K6.21 mi3.10 mi16882-1435833-795833-791710159335933
15K9.32 mi3.11 mi16966-845885-525885-521712359995999
20K12.43 mi3.11 mi16906+605868+175868+171673957775777
Half13.11 mi0.68 mi16886+205857+115857+111654856315631
25K15.53 mi2.42 mi16780+1065821+365821+361614155255525
30K18.64 mi3.11 mi16693+875795+265795+261659558325832
20M20.00 mi1.36 mi16621+725768+275768+271591355205520
21M21.00 mi1.00 mi16467+1545690+785690+781459148214821
35K21.75 mi0.75 mi16387+805650+405650+401434647634763
23M23.00 mi1.25 mi16272+1155596+545596+541452649204920
24M24.00 mi1.00 mi16151+1215544+525544+521421848044804
40K24.85 mi0.85 mi16087+645521+235521+231463251065106
25.2M25.20 mi0.35 mi16050+375507+145507+141416748514851
Finish26.22 mi1.02 mi16032+185509-25509-21556955745574

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

17123

Females

5999

F45-49

5999

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

17101

Females

5933

F45-49

5933

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

17123

Females

5999

F45-49

5999

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

16739

Females

5777

F45-49

5777

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

16548

Females

5631

F45-49

5631

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

16141

Females

5525

F45-49

5525

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

16595

Females

5832

F45-49

5832

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

15913

Females

5520

F45-49

5520

20M→21M

20.0 - 21.0 mi

Top 55%
×8story building
+106ft-24ft

Overall

14591

Females

4821

F45-49

4821

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

14346

Females

4763

F45-49

4763

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

14526

Females

4920

F45-49

4920

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

14218

Females

4804

F45-49

4804

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14632

Females

5106

F45-49

5106

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14167

Females

4851

F45-49

4851

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

15569

Females

5574

F45-49

5574

Passing Analysis

Category:
Athletes Passed
1910
Passed By
1203
Net Change
+707
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16739
5K → 10K243386-143#16739#16882
10K → 15K164248-84#16882#16966
15K → 20K206146+60#16966#16906
20K → Half3919+20#16906#16886
Half → 25K16862+106#16886#16780
25K → 30K214127+87#16780#16693
30K → 20M12149+72#16693#16621
20M → 21M17016+154#16621#16467
21M → 35K9313+80#16467#16387
35K → 23M14227+115#16387#16272
23M → 24M14019+121#16272#16151
24M → 40K9329+64#16151#16087
40K → 25.2M436+37#16087#16050
25.2M → Finish7456+18#16050#16032
TOTALS19101203+707

Passing Charts

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