Boston Marathon logo
BOSTON MARATHON 2023

Michelle Ruzzi

Bib: 19211•F

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:10
Rank: #19154
Start → 5K
27:10 | 8:45/mi
10K· 6.21 mi
54:15
Rank: #19312 (-158)
5K → 10K
27:05 | 8:43/mi
15K· 9.32 mi
1:21:39
Rank: #19396 (-84)
10K → 15K
27:24 | 8:49/mi
20K· 12.43 mi
1:49:21
Rank: #19316 (+80)
15K → 20K
27:42 | 8:55/mi
Half· 13.11 mi
1:55:25
Rank: #19345 (-29)
20K → Half
6:04 | 8:54/mi
25K· 15.53 mi
2:17:17
Rank: #19294 (+51)
Half → 25K
21:52 | 9:01/mi
30K· 18.64 mi
2:45:40
Rank: #19042 (+252)
25K → 30K
28:23 | 9:08/mi
20M
2:58:03
Rank: #18886 (+156)
30K → 20M
12:23 | 9:07/mi
21M
3:07:50
Rank: #18768 (+118)
20M → 21M
9:47 | 9:47/mi
35K· 21.75 mi
3:14:30
Rank: #18711 (+57)
21M → 35K
6:40 | 8:55/mi
23M
3:26:25
Rank: #18703 (+8)
35K → 23M
11:55 | 9:31/mi
24M
3:35:24
Rank: #18628 (+75)
23M → 24M
8:59 | 8:59/mi
40K· 24.85 mi
3:43:31
Rank: #18623 (+5)
24M → 40K
8:07 | 9:30/mi
25.2M
3:46:57
Rank: #18601 (+22)
40K → 25.2M
3:26 | 9:57/mi
Finish· 26.22 mi
3:56:40
Rank: #18701 (-100)
25.2M → Finish
9:43 | 9:32/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:25
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:01:15
Pace9:15 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:3427:108:4527:10
8:45
-
10K
6.21 mi11:57:3954:158:4427:05
8:43
-0:02
15K
9.32 mi12:25:031:21:398:4627:24
8:49
+0:06
20K
12.43 mi12:52:451:49:218:4827:42
8:55
+0:06
Half
13.11 mi12:58:491:55:258:486:04
8:54
-0:01
25K
15.53 mi13:20:412:17:178:5021:52
9:01
+0:07
30K
18.64 mi13:49:042:45:408:5328:23
9:08
+0:07
20M
20.00 mi14:01:272:58:038:5412:23
9:07
-0:01
21M
21.00 mi14:11:143:07:508:579:47
9:47
+0:40
35K
21.75 mi14:17:543:14:308:576:40
8:55
-0:52
23M
23.00 mi14:29:493:26:258:5811:55
9:31
+0:36
24M
24.00 mi14:38:483:35:248:598:59
8:59
-0:32
40K
24.85 mi14:46:553:43:319:008:07
9:30
+0:31
25.2M
25.20 mi14:50:213:46:579:003:26
9:57
+0:27
Finish
26.22 mi15:00:043:56:409:029:43
9:32
-0:25

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

8:43 /mi

Average Pace

9:02 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:43:27

94% of race

Time at Steady Pace

13:13

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:02 /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 mi11:30:3427:108:4527:10
8:45
#19154
10K
6.21 mi11:57:3954:158:4427:05
8:43
#19312
15K
9.32 mi12:25:031:21:398:4627:24
8:49
#19396
20K
12.43 mi12:52:451:49:218:4827:42
8:55
#19316
Half
13.11 mi12:58:491:55:258:486:04
8:54
#19345
25K
15.53 mi13:20:412:17:178:5021:52
9:01
#19294
30K
18.64 mi13:49:042:45:408:5328:23
9:08
#19042
20M
20.00 mi14:01:272:58:038:5412:23
9:07
#18886
21M
21.00 mi14:11:143:07:508:579:47
9:47
#18768
35K
21.75 mi14:17:543:14:308:576:40
8:55
#18711
23M
23.00 mi14:29:493:26:258:5811:55
9:31
#18703
24M
24.00 mi14:38:483:35:248:598:59
8:59
#18628
40K
24.85 mi14:46:553:43:319:008:07
9:30
#18623
25.2M
25.20 mi14:50:213:46:579:003:26
9:57
#18601
Finish
26.22 mi15:00:043:56:409:029:43
9:32
#18701
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi191547295729519628(Top 74%)7459(Top 65%)7459(Top 411%)
10K6.21 mi3.10 mi19312-1587343-487343-4819520(Top 73%)7398(Top 65%)7398(Top 407%)
15K9.32 mi3.11 mi19396-847387-447387-4419628(Top 74%)7459(Top 65%)7459(Top 411%)
20K12.43 mi3.11 mi19316+807316+717316+7119289(Top 72%)7260(Top 64%)7260(Top 400%)
Half13.11 mi0.68 mi19345-297332-167332-1619960(Top 75%)7633(Top 67%)7633(Top 420%)
25K15.53 mi2.42 mi19294+517300+327300+3219060(Top 72%)7164(Top 63%)7164(Top 394%)
30K18.64 mi3.11 mi19042+2527160+1407160+14017875(Top 67%)6576(Top 58%)6576(Top 362%)
20M20.00 mi1.36 mi18886+1567093+677093+6717158(Top 64%)6267(Top 55%)6267(Top 345%)
21M21.00 mi1.00 mi18768+1187034+597034+5917223(Top 65%)6323(Top 55%)6323(Top 348%)
35K21.75 mi0.75 mi18711+577005+297005+2917546(Top 66%)6588(Top 58%)6588(Top 363%)
23M23.00 mi1.25 mi18703+87018-137018-1318410(Top 69%)7082(Top 62%)7082(Top 390%)
24M24.00 mi1.00 mi18628+756982+366982+3617181(Top 65%)6460(Top 57%)6460(Top 356%)
40K24.85 mi0.85 mi18623+56991-96991-918324(Top 69%)7116(Top 62%)7116(Top 392%)
25.2M25.20 mi0.35 mi18601+226982+96982+917256(Top 65%)6582(Top 58%)6582(Top 362%)
Finish26.22 mi1.02 mi18701-1007050-687050-6820259(Top 76%)8152(Top 71%)8152(Top 449%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21stories
+97ft-345ft

Overall

19628

Females

7459

F45-49

7459

5K→10K

3.1 - 6.2 mi

Top 73%
×5stories
+79ft-138ft

Overall

19520

Females

7398

F45-49

7398

10K→15K

6.2 - 9.3 mi

Top 74%
×3stories
+67ft-78ft

Overall

19628

Females

7459

F45-49

7459

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

19289

Females

7260

F45-49

7260

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

19960

Females

7633

F45-49

7633

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

19060

Females

7164

F45-49

7164

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

17875

Females

6576

F45-49

6576

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

17158

Females

6267

F45-49

6267

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

17223

Females

6323

F45-49

6323

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

17546

Females

6588

F45-49

6588

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

18410

Females

7082

F45-49

7082

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

17181

Females

6460

F45-49

6460

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

18324

Females

7116

F45-49

7116

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17256

Females

6582

F45-49

6582

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

20259

Females

8152

F45-49

8152

Passing Analysis

Category:
Athletes Passed
1761
Passed By
1308
Net Change
+453
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19154
5K → 10K258416-158#19154#19312
10K → 15K152236-84#19312#19396
15K → 20K199119+80#19396#19316
20K → Half1746-29#19316#19345
Half → 25K14392+51#19345#19294
25K → 30K31260+252#19294#19042
30K → 20M17317+156#19042#18886
20M → 21M14628+118#18886#18768
21M → 35K7518+57#18768#18711
35K → 23M8678+8#18711#18703
23M → 24M9318+75#18703#18628
24M → 40K5146+5#18628#18623
40K → 25.2M3715+22#18623#18601
25.2M → Finish19119-100#18601#18701
TOTALS17611308+453
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing