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BOSTON MARATHON 2023

Molly Sunderlin

Bib: 6889•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 32%
Gender (Female)
#0 / 11423
Top 13%
Masters (Masters Women)
#0 / 6539
Top 5%
Division (F40-44)
#0 / 1878
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:09
Rank: #9241
Start → 5K
23:09 | 7:27/mi
10K· 6.21 mi
46:33
Rank: #9951 (-710)
5K → 10K
23:24 | 7:32/mi
15K· 9.32 mi
1:10:01
Rank: #10174 (-223)
10K → 15K
23:28 | 7:33/mi
20K· 12.43 mi
1:33:36
Rank: #10109 (+65)
15K → 20K
23:35 | 7:35/mi
Half· 13.11 mi
1:38:36
Rank: #10022 (+87)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
1:57:02
Rank: #9923 (+99)
Half → 25K
18:26 | 7:36/mi
30K· 18.64 mi
2:20:28
Rank: #9449 (+474)
25K → 30K
23:26 | 7:33/mi
20M
2:30:46
Rank: #9264 (+185)
30K → 20M
10:18 | 7:35/mi
21M
2:38:34
Rank: #9038 (+226)
20M → 21M
7:48 | 7:48/mi
35K· 21.75 mi
2:43:57
Rank: #8929 (+109)
21M → 35K
5:23 | 7:12/mi
23M
2:53:31
Rank: #8812 (+117)
35K → 23M
9:34 | 7:38/mi
24M
3:01:04
Rank: #8750 (+62)
23M → 24M
7:33 | 7:33/mi
40K· 24.85 mi
3:07:41
Rank: #8712 (+38)
24M → 40K
6:37 | 7:44/mi
25.2M
3:10:30
Rank: #8685 (+27)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
3:18:03
Rank: #8628 (+57)
25.2M → Finish
7:33 | 7:25/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:38:36
Pace7:31 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:39:27
Pace7:35 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:4523:097:2723:09
7:27
-
10K
6.21 mi11:12:0946:337:2923:24
7:32
+0:05
15K
9.32 mi11:35:371:10:017:3123:28
7:33
+0:01
20K
12.43 mi11:59:121:33:367:3223:35
7:35
+0:02
Half
13.11 mi12:04:121:38:367:315:00
7:20
-0:15
25K
15.53 mi12:22:381:57:027:3218:26
7:36
+0:16
30K
18.64 mi12:46:042:20:287:3223:26
7:33
-0:03
20M
20.00 mi12:56:222:30:467:3210:18
7:35
+0:02
21M
21.00 mi13:04:102:38:347:337:48
7:48
+0:13
35K
21.75 mi13:09:332:43:577:325:23
7:12
-0:36
23M
23.00 mi13:19:072:53:317:339:34
7:38
+0:26
24M
24.00 mi13:26:403:01:047:337:33
7:33
-0:05
40K
24.85 mi13:33:173:07:417:336:37
7:44
+0:11
25.2M
25.20 mi13:36:063:10:307:342:49
8:10
+0:26
Finish
26.22 mi13:43:393:18:037:347:33
7:25
-0:45

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

7:12 /mi

Average Pace

7:34 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:14

99% of race

Time at Steady Pace

2:49

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:33 /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 mi10:48:4523:097:2723:09
7:27
#9241
10K
6.21 mi11:12:0946:337:2923:24
7:32
#9951
15K
9.32 mi11:35:371:10:017:3123:28
7:33
#10174
20K
12.43 mi11:59:121:33:367:3223:35
7:35
#10109
Half
13.11 mi12:04:121:38:367:315:00
7:20
#10022
25K
15.53 mi12:22:381:57:027:3218:26
7:36
#9923
30K
18.64 mi12:46:042:20:287:3223:26
7:33
#9449
20M
20.00 mi12:56:222:30:467:3210:18
7:35
#9264
21M
21.00 mi13:04:102:38:347:337:48
7:48
#9038
35K
21.75 mi13:09:332:43:577:325:23
7:12
#8929
23M
23.00 mi13:19:072:53:317:339:34
7:38
#8812
24M
24.00 mi13:26:403:01:047:337:33
7:33
#8750
40K
24.85 mi13:33:173:07:417:336:37
7:44
#8712
25.2M
25.20 mi13:36:063:10:307:342:49
8:10
#8685
Finish
26.22 mi13:43:393:18:037:347:33
7:25
#8628
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi92411501150110606(Top 40%)2131(Top 19%)2131(Top 113%)
10K6.21 mi3.10 mi9951-7101821-3201821-32010719(Top 40%)2160(Top 19%)2160(Top 115%)
15K9.32 mi3.11 mi10174-2231894-731894-7310606(Top 40%)2131(Top 19%)2131(Top 113%)
20K12.43 mi3.11 mi10109+651880+141880+1410023(Top 38%)1920(Top 17%)1920(Top 102%)
Half13.11 mi0.68 mi10022+871845+351845+358887(Top 33%)1437(Top 13%)1437(Top 77%)
25K15.53 mi2.42 mi9923+991818+271818+279566(Top 36%)1804(Top 16%)1804(Top 96%)
30K18.64 mi3.11 mi9449+4741669+1491669+1497535(Top 28%)1123(Top 10%)1123(Top 60%)
20M20.00 mi1.36 mi9264+1851620+491620+497385(Top 28%)1178(Top 10%)1178(Top 63%)
21M21.00 mi1.00 mi9038+2261544+761544+766207(Top 23%)861(Top 8%)861(Top 46%)
35K21.75 mi0.75 mi8929+1091510+341510+346556(Top 25%)949(Top 8%)949(Top 51%)
23M23.00 mi1.25 mi8812+1171495+151495+157392(Top 28%)1334(Top 12%)1334(Top 71%)
24M24.00 mi1.00 mi8750+621490+51490+58069(Top 30%)1702(Top 15%)1702(Top 91%)
40K24.85 mi0.85 mi8712+381500-101500-108266(Top 31%)1848(Top 16%)1848(Top 98%)
25.2M25.20 mi0.35 mi8685+271496+41496+47554(Top 28%)1624(Top 14%)1624(Top 86%)
Finish26.22 mi1.02 mi8628+571493+31493+37877(Top 30%)1776(Top 16%)1776(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

10606

Females

2131

F40-44

2131

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

10719

Females

2160

F40-44

2160

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

10606

Females

2131

F40-44

2131

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10023

Females

1920

F40-44

1920

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

8887

Females

1437

F40-44

1437

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

9566

Females

1804

F40-44

1804

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7535

Females

1123

F40-44

1123

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7385

Females

1178

F40-44

1178

20M→21M

20.0 - 21.0 mi

Top 23%
×8stories
+106ft-24ft

Overall

6207

Females

861

F40-44

861

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6556

Females

949

F40-44

949

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7392

Females

1334

F40-44

1334

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8069

Females

1702

F40-44

1702

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8266

Females

1848

F40-44

1848

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7554

Females

1624

F40-44

1624

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

7877

Females

1776

F40-44

1776

Passing Analysis

Category:
Athletes Passed
2089*
Passed By
1474
Net Change
+613
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9241
5K → 10K80790-710#9241#9951
10K → 15K113334-223#9951#10174
15K → 20K187*122+65#10174#10109
20K → Half93*6+87#10109#10022
Half → 25K162*63+99#10022#9923
25K → 30K482*8+474#9923#9449
30K → 20M1949+185#9449#9264
20M → 21M2293+226#9264#9038
21M → 35K1090+109#9038#8929
35K → 23M14528+117#8929#8812
23M → 24M8523+62#8812#8750
24M → 40K8345+38#8750#8712
40K → 25.2M3912+27#8712#8685
25.2M → Finish8831+57#8685#8628
TOTALS2089*1474+613

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

📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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