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BOSTON MARATHON 2023

Molly Brunner

Bib: 16317•F

IN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 35%
Gender (Female)
#0 / 11423
Top 16%
Division (F18-39)
#0 / 4884
Top 28%
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
7:05/mi
22:00
↑ 97↓ 3451.5%
10K· 6.21 mi
7:24/mi
45:00
↑ 79↓ 1380.4%
15K· 9.32 mi
7:30/mi
1:08:17
↑ 67↓ 78
20K· 12.43 mi
7:31/mi
1:31:37
↑ 106↓ 860.1%
Half· 13.11 mi
7:15/mi
1:36:34
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:55:03
↑ 66↓ 880.2%
30K· 18.64 mi
7:51/mi
2:19:25
↑ 181↓ 1480.2%
20M
8:03/mi
2:30:22
↑ 64↓ 500.2%
21M
8:28/mi
2:38:50
↑ 106↓ 241.6%
35K· 21.75 mi
7:36/mi
2:44:31
↑ 17↓ 861.7%
23M
8:05/mi
2:54:38
↑ 23↓ 630.6%
24M
7:58/mi
3:02:36
↓ 821.3%
40K· 24.85 mi
8:08/mi
3:09:33
↓ 200.3%
25.2M
8:39/mi
3:12:32
↑ 13↓ 160.2%
Finish· 26.22 mi
7:41/mi
3:20:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:34
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:43:48
Pace7:55 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:0522:007:0522:00
7:05
-
10K
6.21 mi11:35:0545:007:1523:00
7:24
+0:19
15K
9.32 mi11:58:221:08:177:2023:17
7:30
+0:06
20K
12.43 mi12:21:421:31:377:2223:20
7:31
+0:01
Half
13.11 mi12:26:391:36:347:224:57
7:15
-0:16
25K
15.53 mi12:45:081:55:037:2418:29
7:37
+0:22
30K
18.64 mi13:09:302:19:257:2924:22
7:51
+0:14
20M
20.00 mi13:20:272:30:227:3110:57
8:03
+0:12
21M
21.00 mi13:28:552:38:507:348:28
8:28
+0:25
35K
21.75 mi13:34:362:44:317:345:41
7:36
-0:52
23M
23.00 mi13:44:432:54:387:3610:07
8:05
+0:29
24M
24.00 mi13:52:413:02:367:377:58
7:58
-0:07
40K
24.85 mi13:59:383:09:337:386:57
8:08
+0:10
25.2M
25.20 mi14:02:373:12:327:382:59
8:39
+0:31
Finish
26.22 mi14:10:273:20:227:397:50
7:41
-0:58

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

7:05 /mi

Average Pace

7:39 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

49:57

25% of race

Time at Steady Pace

1:42:59

51% of race

Time at Slower Pace

47:26

24% of race

Average Pace: 7:39 /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 mi11:12:0522:007:0522:00
7:05
#6772
10K
6.21 mi11:35:0545:007:1523:00
7:24
#8056
15K
9.32 mi11:58:221:08:177:2023:17
7:30
#8662
20K
12.43 mi12:21:421:31:377:2223:20
7:31
#8784
Half
13.11 mi12:26:391:36:347:224:57
7:15
#8762
25K
15.53 mi12:45:081:55:037:2418:29
7:37
#8879
30K
18.64 mi13:09:302:19:257:2924:22
7:51
#9001
20M
20.00 mi13:20:272:30:227:3110:57
8:03
#9087
21M
21.00 mi13:28:552:38:507:348:28
8:28
#9131
35K
21.75 mi13:34:362:44:317:345:41
7:36
#9120
23M
23.00 mi13:44:432:54:387:3610:07
8:05
#9183
24M
24.00 mi13:52:413:02:367:377:58
7:58
#9208
40K
24.85 mi13:59:383:09:337:386:57
8:08
#9258
25.2M
25.20 mi14:02:373:12:327:382:59
8:39
#9278
Finish
26.22 mi14:10:273:20:227:397:50
7:41
#9298
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi677266566510139(Top 38%)1905(Top 17%)1905(Top 39%)
10K6.21 mi3.10 mi8056-12841054-3891054-3899668(Top 36%)1686(Top 15%)1686(Top 35%)
15K9.32 mi3.11 mi8662-6061285-2311285-23110139(Top 38%)1905(Top 17%)1905(Top 39%)
20K12.43 mi3.11 mi8784-1221347-621347-629403(Top 35%)1650(Top 14%)1650(Top 34%)
Half13.11 mi0.68 mi8762+221343+41343+48334(Top 31%)1239(Top 11%)1239(Top 25%)
25K15.53 mi2.42 mi8879-1171400-571400-579743(Top 37%)1885(Top 17%)1885(Top 39%)
30K18.64 mi3.11 mi9001-1221486-861486-869690(Top 36%)2013(Top 18%)2013(Top 41%)
20M20.00 mi1.36 mi9087-861544-581544-5810710(Top 40%)2578(Top 23%)2578(Top 53%)
21M21.00 mi1.00 mi9131-441590-461590-4610295(Top 39%)2522(Top 22%)2522(Top 52%)
35K21.75 mi0.75 mi9120+111597-71597-79284(Top 35%)2037(Top 18%)2037(Top 42%)
23M23.00 mi1.25 mi9183-631649-521649-5210317(Top 39%)2661(Top 23%)2661(Top 54%)
24M24.00 mi1.00 mi9208-251679-301679-3011014(Top 41%)3087(Top 27%)3087(Top 63%)
40K24.85 mi0.85 mi9258-501726-471726-4710899(Top 41%)3085(Top 27%)3085(Top 63%)
25.2M25.20 mi0.35 mi9278-201749-231749-2310479(Top 39%)2905(Top 25%)2905(Top 59%)
Finish26.22 mi1.02 mi9298-201779-301779-309910(Top 37%)2657(Top 23%)2657(Top 54%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10139

Females

1905

F18-39

1905

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

9668

Females

1686

F18-39

1686

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10139

Females

1905

F18-39

1905

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9403

Females

1650

F18-39

1650

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8334

Females

1239

F18-39

1239

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9743

Females

1885

F18-39

1885

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9690

Females

2013

F18-39

2013

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10710

Females

2578

F18-39

2578

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

10295

Females

2522

F18-39

2522

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

9284

Females

2037

F18-39

2037

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

10317

Females

2661

F18-39

2661

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11014

Females

3087

F18-39

3087

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10899

Females

3085

F18-39

3085

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10479

Females

2905

F18-39

2905

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

9910

Females

2657

F18-39

2657

Passing Analysis

Category:
Athletes Passed
771
Passed By
3297
Net Change
-2526
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6772
5K → 10K111295-1284#6772#8056
10K → 15K25631-606#8056#8662
15K → 20K88210-122#8662#8784
20K → Half3715+22#8784#8762
Half → 25K64181-117#8762#8879
25K → 30K133255-122#8879#9001
30K → 20M63149-86#9001#9087
20M → 21M69113-44#9087#9131
21M → 35K4635+11#9131#9120
35K → 23M68131-63#9120#9183
23M → 24M4974-25#9183#9208
24M → 40K50100-50#9208#9258
40K → 25.2M1939-20#9258#9278
25.2M → Finish4969-20#9278#9298
TOTALS7713297-2526
📊

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