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BOSTON MARATHON 2023

Emma Rubin

Bib: 18255•F

ME

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 41%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:54
Rank: #16401
Start → 5K
25:54 | 8:20/mi
10K· 6.21 mi
51:12
Rank: #16115 (+286)
5K → 10K
25:18 | 8:09/mi
15K· 9.32 mi
1:16:22
Rank: #15775 (+340)
10K → 15K
25:10 | 8:06/mi
20K· 12.43 mi
1:41:53
Rank: #15554 (+221)
15K → 20K
25:31 | 8:13/mi
Half· 13.11 mi
1:47:27
Rank: #15554
20K → Half
5:34 | 8:10/mi
25K· 15.53 mi
2:07:34
Rank: #15428 (+126)
Half → 25K
20:07 | 8:18/mi
30K· 18.64 mi
2:34:22
Rank: #15342 (+86)
25K → 30K
26:48 | 8:38/mi
20M
2:46:01
Rank: #15234 (+108)
30K → 20M
11:39 | 8:34/mi
21M
2:54:53
Rank: #15073 (+161)
20M → 21M
8:52 | 8:52/mi
35K· 21.75 mi
3:00:59
Rank: #15001 (+72)
21M → 35K
6:06 | 8:09/mi
23M
3:11:39
Rank: #14888 (+113)
35K → 23M
10:40 | 8:31/mi
24M
3:20:01
Rank: #14803 (+85)
23M → 24M
8:22 | 8:22/mi
40K· 24.85 mi
3:27:24
Rank: #14741 (+62)
24M → 40K
7:23 | 8:38/mi
25.2M
3:30:31
Rank: #14704 (+37)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
3:38:54
Rank: #14663 (+41)
25.2M → Finish
8:23 | 8:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:27
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time1:51:27
Pace8:30 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:1425:548:2025:54
8:20
-
10K
6.21 mi11:46:3251:128:1425:18
8:09
-0:11
15K
9.32 mi12:11:421:16:228:1225:10
8:06
-0:03
20K
12.43 mi12:37:131:41:538:1225:31
8:13
+0:07
Half
13.11 mi12:42:471:47:278:125:34
8:10
-0:03
25K
15.53 mi13:02:542:07:348:1320:07
8:18
+0:08
30K
18.64 mi13:29:422:34:228:1726:48
8:38
+0:20
20M
20.00 mi13:41:212:46:018:1811:39
8:34
-0:04
21M
21.00 mi13:50:132:54:538:208:52
8:52
+0:18
35K
21.75 mi13:56:193:00:598:196:06
8:09
-0:43
23M
23.00 mi14:06:593:11:398:2010:40
8:31
+0:22
24M
24.00 mi14:15:213:20:018:208:22
8:22
-0:09
40K
24.85 mi14:22:443:27:248:217:23
8:38
+0:16
25.2M
25.20 mi14:25:513:30:318:213:07
9:02
+0:24
Finish
26.22 mi14:34:143:38:548:218:23
8:14
-0:48

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

8:06 /mi

Average Pace

8:21 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:35:47

99% of race

Time at Steady Pace

3:07

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:21 /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 mi11:21:1425:548:2025:54
8:20
#16401
10K
6.21 mi11:46:3251:128:1425:18
8:09
#16115
15K
9.32 mi12:11:421:16:228:1225:10
8:06
#15775
20K
12.43 mi12:37:131:41:538:1225:31
8:13
#15554
Half
13.11 mi12:42:471:47:278:125:34
8:10
#15554
25K
15.53 mi13:02:542:07:348:1320:07
8:18
#15428
30K
18.64 mi13:29:422:34:228:1726:48
8:38
#15342
20M
20.00 mi13:41:212:46:018:1811:39
8:34
#15234
21M
21.00 mi13:50:132:54:538:208:52
8:52
#15073
35K
21.75 mi13:56:193:00:598:196:06
8:09
#15001
23M
23.00 mi14:06:593:11:398:2010:40
8:31
#14888
24M
24.00 mi14:15:213:20:018:208:22
8:22
#14803
40K
24.85 mi14:22:443:27:248:217:23
8:38
#14741
25.2M
25.20 mi14:25:513:30:318:213:07
9:02
#14704
Finish
26.22 mi14:34:143:38:548:218:23
8:14
#14663
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi164015536553615181(Top 57%)4781(Top 42%)4781(Top 98%)
10K6.21 mi3.10 mi16115+2865344+1925344+19215856(Top 60%)5179(Top 45%)5179(Top 106%)
15K9.32 mi3.11 mi15775+3405138+2065138+20615181(Top 57%)4781(Top 42%)4781(Top 98%)
20K12.43 mi3.11 mi15554+2215025+1135025+11315058(Top 57%)4752(Top 42%)4752(Top 97%)
Half13.11 mi0.68 mi155545032-75032-715524(Top 58%)4996(Top 44%)4996(Top 102%)
25K15.53 mi2.42 mi15428+1264980+524980+5214942(Top 56%)4794(Top 42%)4794(Top 98%)
30K18.64 mi3.11 mi15342+864975+54975+515071(Top 57%)4974(Top 44%)4974(Top 102%)
20M20.00 mi1.36 mi15234+1084931+444931+4414102(Top 53%)4474(Top 39%)4474(Top 92%)
21M21.00 mi1.00 mi15073+1614844+874844+8712700(Top 48%)3796(Top 33%)3796(Top 78%)
35K21.75 mi0.75 mi15001+724815+294815+2913206(Top 50%)4127(Top 36%)4127(Top 85%)
23M23.00 mi1.25 mi14888+1134765+504765+5013380(Top 50%)4284(Top 38%)4284(Top 88%)
24M24.00 mi1.00 mi14803+854734+314734+3113675(Top 51%)4494(Top 39%)4494(Top 92%)
40K24.85 mi0.85 mi14741+624726+84726+814188(Top 53%)4850(Top 42%)4850(Top 99%)
25.2M25.20 mi0.35 mi14704+374711+154711+1512819(Top 48%)4152(Top 36%)4152(Top 85%)
Finish26.22 mi1.02 mi14663+414702+94702+913646(Top 51%)4552(Top 40%)4552(Top 93%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

15181

Females

4781

F18-39

4781

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

15856

Females

5179

F18-39

5179

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

15181

Females

4781

F18-39

4781

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

15058

Females

4752

F18-39

4752

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

15524

Females

4996

F18-39

4996

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

14942

Females

4794

F18-39

4794

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

15071

Females

4974

F18-39

4974

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

14102

Females

4474

F18-39

4474

20M→21M

20.0 - 21.0 mi

Top 48%
×8stories
+106ft-24ft

Overall

12700

Females

3796

F18-39

3796

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

13206

Females

4127

F18-39

4127

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

13380

Females

4284

F18-39

4284

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

13675

Females

4494

F18-39

4494

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14188

Females

4850

F18-39

4850

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12819

Females

4152

F18-39

4152

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2stories
+22ft-21ft

Overall

13646

Females

4552

F18-39

4552

Passing Analysis

Category:
Athletes Passed
2480
Passed By
742
Net Change
+1738
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16401
5K → 10K457171+286#16401#16115
10K → 15K41373+340#16115#15775
15K → 20K29170+221#15775#15554
20K → Half28280#15554#15554
Half → 25K19872+126#15554#15428
25K → 30K225139+86#15428#15342
30K → 20M14032+108#15342#15234
20M → 21M17817+161#15234#15073
21M → 35K8513+72#15073#15001
35K → 23M13825+113#15001#14888
23M → 24M11126+85#14888#14803
24M → 40K8624+62#14803#14741
40K → 25.2M5215+37#14741#14704
25.2M → Finish7837+41#14704#14663
TOTALS2480742+1738
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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