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BOSTON MARATHON 2023

Rebecca Diemer

Bib: 12694•F

IA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 31%
Gender (Female)
#0 / 11423
Top 12%
Division (F18-39)
#0 / 4884
Top 22%
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
7:27/mi
23:08
↑ 97↓ 3451.5%
10K· 6.21 mi
7:35/mi
46:41
↑ 79↓ 1380.4%
15K· 9.32 mi
7:27/mi
1:09:50
↑ 67↓ 78
20K· 12.43 mi
7:31/mi
1:33:10
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:38:08
↑ 19↓ 370.5%
25K· 15.53 mi
7:23/mi
1:56:02
↑ 66↓ 880.2%
30K· 18.64 mi
7:38/mi
2:19:45
↑ 181↓ 1480.2%
20M
7:34/mi
2:30:02
↑ 64↓ 500.2%
21M
8:02/mi
2:38:04
↑ 106↓ 241.6%
35K· 21.75 mi
7:13/mi
2:43:28
↑ 17↓ 861.7%
23M
7:31/mi
2:52:53
↑ 23↓ 630.6%
24M
7:18/mi
3:00:11
↓ 821.3%
40K· 24.85 mi
7:30/mi
3:06:36
↓ 200.3%
25.2M
8:16/mi
3:09:27
↑ 13↓ 160.2%
Finish· 26.22 mi
7:24/mi
3:16:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:38:08
Pace7:29 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:38:51
Pace7:32 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:5223:087:2723:08
7:27
-
10K
6.21 mi11:47:2546:417:3123:33
7:35
+0:08
15K
9.32 mi12:10:341:09:507:3023:09
7:27
-0:08
20K
12.43 mi12:33:541:33:107:3023:20
7:31
+0:04
Half
13.11 mi12:38:521:38:087:294:58
7:17
-0:14
25K
15.53 mi12:56:461:56:027:2817:54
7:23
+0:06
30K
18.64 mi13:20:292:19:457:3023:43
7:38
+0:15
20M
20.00 mi13:30:462:30:027:3010:17
7:34
-0:04
21M
21.00 mi13:38:482:38:047:328:02
8:02
+0:28
35K
21.75 mi13:44:122:43:287:315:24
7:13
-0:49
23M
23.00 mi13:53:372:52:537:319:25
7:31
+0:18
24M
24.00 mi14:00:553:00:117:307:18
7:18
-0:13
40K
24.85 mi14:07:203:06:367:306:25
7:30
+0:12
25.2M
25.20 mi14:10:113:09:277:312:51
8:16
+0:46
Finish
26.22 mi14:17:433:16:597:317:32
7:24
-0:52

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

7:13 /mi

Average Pace

7:31 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:06

94% of race

Time at Steady Pace

10:53

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:31 /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 mi11:23:5223:087:2723:08
7:27
#9198
10K
6.21 mi11:47:2546:417:3123:33
7:35
#10163
15K
9.32 mi12:10:341:09:507:3023:09
7:27
#9966
20K
12.43 mi12:33:541:33:107:3023:20
7:31
#9802
Half
13.11 mi12:38:521:38:087:294:58
7:17
#9712
25K
15.53 mi12:56:461:56:027:2817:54
7:23
#9393
30K
18.64 mi13:20:292:19:457:3023:43
7:38
#9133
20M
20.00 mi13:30:462:30:027:3010:17
7:34
#8965
21M
21.00 mi13:38:482:38:047:328:02
8:02
#8866
35K
21.75 mi13:44:122:43:287:315:24
7:13
#8763
23M
23.00 mi13:53:372:52:537:319:25
7:31
#8594
24M
24.00 mi14:00:553:00:117:307:18
7:18
#8455
40K
24.85 mi14:07:203:06:367:306:25
7:30
#8371
25.2M
25.20 mi14:10:113:09:277:312:51
8:16
#8343
Finish
26.22 mi14:17:433:16:597:317:32
7:24
#8292
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9198147014709781(Top 37%)1740(Top 15%)1740(Top 36%)
10K6.21 mi3.10 mi10163-9651908-4381908-43811138(Top 42%)2389(Top 21%)2389(Top 49%)
15K9.32 mi3.11 mi9966+1971811+971811+979781(Top 37%)1740(Top 15%)1740(Top 36%)
20K12.43 mi3.11 mi9802+1641752+591752+599392(Top 35%)1639(Top 14%)1639(Top 34%)
Half13.11 mi0.68 mi9712+901711+411711+418509(Top 32%)1288(Top 11%)1288(Top 26%)
25K15.53 mi2.42 mi9393+3191607+1041607+1047896(Top 30%)1154(Top 10%)1154(Top 24%)
30K18.64 mi3.11 mi9133+2601537+701537+708200(Top 31%)1386(Top 12%)1386(Top 28%)
20M20.00 mi1.36 mi8965+1681487+501487+507305(Top 27%)1143(Top 10%)1143(Top 23%)
21M21.00 mi1.00 mi8866+991467+201467+207581(Top 28%)1347(Top 12%)1347(Top 28%)
35K21.75 mi0.75 mi8763+1031439+281439+286693(Top 25%)995(Top 9%)995(Top 20%)
23M23.00 mi1.25 mi8594+1691407+321407+326566(Top 25%)1017(Top 9%)1017(Top 21%)
24M24.00 mi1.00 mi8455+1391375+321375+326418(Top 24%)1057(Top 9%)1057(Top 22%)
40K24.85 mi0.85 mi8371+841363+121363+126794(Top 26%)1279(Top 11%)1279(Top 26%)
25.2M25.20 mi0.35 mi8343+281364-11364-18140(Top 31%)1867(Top 16%)1867(Top 38%)
Finish26.22 mi1.02 mi8292+511370-61370-67760(Top 29%)1720(Top 15%)1720(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9781

Females

1740

F18-39

1740

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11138

Females

2389

F18-39

2389

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9781

Females

1740

F18-39

1740

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9392

Females

1639

F18-39

1639

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8509

Females

1288

F18-39

1288

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

7896

Females

1154

F18-39

1154

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8200

Females

1386

F18-39

1386

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

7305

Females

1143

F18-39

1143

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7581

Females

1347

F18-39

1347

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

6693

Females

995

F18-39

995

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

6566

Females

1017

F18-39

1017

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6418

Females

1057

F18-39

1057

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6794

Females

1279

F18-39

1279

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8140

Females

1867

F18-39

1867

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7760

Females

1720

F18-39

1720

Passing Analysis

Category:
Athletes Passed
2303*
Passed By
1396
Net Change
+906
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9198
5K → 10K571021-965#9198#10163
10K → 15K284*87+197#10163#9966
15K → 20K252*88+164#9966#9802
20K → Half977+90#9802#9712
Half → 25K3278+319#9712#9393
25K → 30K306*46+260#9393#9133
30K → 20M17911+168#9133#8965
20M → 21M12526+99#8965#8866
21M → 35K1096+103#8866#8763
35K → 23M18112+169#8763#8594
23M → 24M1478+139#8594#8455
24M → 40K10319+84#8455#8371
40K → 25.2M4214+28#8371#8343
25.2M → Finish9443+51#8343#8292
TOTALS2303*1396+906

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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