Boston Marathon logo
BOSTON MARATHON 2023

Flavia Muguruza

Bib: 19606•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 36%
Masters (Masters Women)
#0 / 6539
Top 22%
Division (F45-49)
#0 / 1817
Top 24%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:05
Rank: #14524
Start → 5K
25:05 | 8:04/mi
10K· 6.21 mi
50:54
Rank: #15759 (-1235)
5K → 10K
25:49 | 8:19/mi
15K· 9.32 mi
1:16:42
Rank: #16024 (-265)
10K → 15K
25:48 | 8:18/mi
20K· 12.43 mi
1:42:47
Rank: #16057 (-33)
15K → 20K
26:05 | 8:24/mi
Half· 13.11 mi
1:48:16
Rank: #15976 (+81)
20K → Half
5:29 | 8:02/mi
25K· 15.53 mi
2:08:22
Rank: #15769 (+207)
Half → 25K
20:06 | 8:17/mi
30K· 18.64 mi
2:34:26
Rank: #15371 (+398)
25K → 30K
26:04 | 8:23/mi
20M
2:45:39
Rank: #15113 (+258)
30K → 20M
11:13 | 8:15/mi
21M
2:54:06
Rank: #14823 (+290)
20M → 21M
8:27 | 8:27/mi
35K· 21.75 mi
2:59:48
Rank: #14623 (+200)
21M → 35K
5:42 | 7:37/mi
23M
3:09:52
Rank: #14369 (+254)
35K → 23M
10:04 | 8:02/mi
24M
3:17:41
Rank: #14148 (+221)
23M → 24M
7:49 | 7:49/mi
40K· 24.85 mi
3:24:30
Rank: #13953 (+195)
24M → 40K
6:49 | 7:58/mi
25.2M
3:27:21
Rank: #13860 (+93)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:35:00
Rank: #13633 (+227)
25.2M → Finish
7:39 | 7:30/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 Half
Distance13.11 mi
Time1:48:16
Pace8:16 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:46:44
Pace8:09 /mi
📊Negative Split: 1.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:2125:058:0425:05
8:04
-
10K
6.21 mi12:06:1050:548:1125:49
8:19
+0:15
15K
9.32 mi12:31:581:16:428:1425:48
8:18
-0:01
20K
12.43 mi12:58:031:42:478:1626:05
8:24
+0:06
Half
13.11 mi13:03:321:48:168:165:29
8:02
-0:22
25K
15.53 mi13:23:382:08:228:1620:06
8:17
+0:15
30K
18.64 mi13:49:422:34:268:1726:04
8:23
+0:06
20M
20.00 mi14:00:552:45:398:1711:13
8:15
-0:08
21M
21.00 mi14:09:222:54:068:178:27
8:27
+0:12
35K
21.75 mi14:15:042:59:488:165:42
7:37
-0:50
23M
23.00 mi14:25:083:09:528:1510:04
8:02
+0:25
24M
24.00 mi14:32:573:17:418:147:49
7:49
-0:13
40K
24.85 mi14:39:463:24:308:146:49
7:58
+0:09
25.2M
25.20 mi14:42:373:27:218:142:51
8:16
+0:18
Finish
26.22 mi14:50:163:35:008:127:39
7:30
-0:46

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

7:30 /mi

Average Pace

8:12 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:08:37

32% of race

Time at Steady Pace

2:26:23

68% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:12 /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 mi11:40:2125:058:0425:05
8:04
#14524
10K
6.21 mi12:06:1050:548:1125:49
8:19
#15759
15K
9.32 mi12:31:581:16:428:1425:48
8:18
#16024
20K
12.43 mi12:58:031:42:478:1626:05
8:24
#16057
Half
13.11 mi13:03:321:48:168:165:29
8:02
#15976
25K
15.53 mi13:23:382:08:228:1620:06
8:17
#15769
30K
18.64 mi13:49:422:34:268:1726:04
8:23
#15371
20M
20.00 mi14:00:552:45:398:1711:13
8:15
#15113
21M
21.00 mi14:09:222:54:068:178:27
8:27
#14823
35K
21.75 mi14:15:042:59:488:165:42
7:37
#14623
23M
23.00 mi14:25:083:09:528:1510:04
8:02
#14369
24M
24.00 mi14:32:573:17:418:147:49
7:49
#14148
40K
24.85 mi14:39:463:24:308:146:49
7:58
#13953
25.2M
25.20 mi14:42:373:27:218:142:51
8:16
#13860
Finish
26.22 mi14:50:163:35:008:127:39
7:30
#13633
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi145244342434216560(Top 62%)5632(Top 49%)5632(Top 310%)
10K6.21 mi3.10 mi15759-12355131-7895131-78916998(Top 64%)5868(Top 51%)5868(Top 323%)
15K9.32 mi3.11 mi16024-2655295-1645295-16416560(Top 62%)5632(Top 49%)5632(Top 310%)
20K12.43 mi3.11 mi16057-335341-465341-4616212(Top 61%)5472(Top 48%)5472(Top 301%)
Half13.11 mi0.68 mi15976+815292+495292+4914697(Top 55%)4493(Top 39%)4493(Top 247%)
25K15.53 mi2.42 mi15769+2075191+1015191+10114891(Top 56%)4758(Top 42%)4758(Top 262%)
30K18.64 mi3.11 mi15371+3984992+1994992+19913638(Top 51%)4113(Top 36%)4113(Top 226%)
20M20.00 mi1.36 mi15113+2584843+1494843+14912086(Top 45%)3334(Top 29%)3334(Top 183%)
21M21.00 mi1.00 mi14823+2904677+1664677+16610227(Top 38%)2502(Top 22%)2502(Top 138%)
35K21.75 mi0.75 mi14623+2004578+994578+999475(Top 36%)2152(Top 19%)2152(Top 118%)
23M23.00 mi1.25 mi14369+2544454+1244454+12410078(Top 38%)2555(Top 22%)2555(Top 141%)
24M24.00 mi1.00 mi14148+2214338+1164338+1169984(Top 38%)2602(Top 23%)2602(Top 143%)
40K24.85 mi0.85 mi13953+1954243+954243+959931(Top 37%)2629(Top 23%)2629(Top 145%)
25.2M25.20 mi0.35 mi13860+934193+504193+508224(Top 31%)1951(Top 17%)1951(Top 107%)
Finish26.22 mi1.02 mi13633+2274068+1254068+1258655(Top 33%)2105(Top 18%)2105(Top 116%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

16560

Females

5632

F45-49

5632

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

16998

Females

5868

F45-49

5868

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

16560

Females

5632

F45-49

5632

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

16212

Females

5472

F45-49

5472

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

14697

Females

4493

F45-49

4493

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

14891

Females

4758

F45-49

4758

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

13638

Females

4113

F45-49

4113

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

12086

Females

3334

F45-49

3334

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10227

Females

2502

F45-49

2502

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

9475

Females

2152

F45-49

2152

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10078

Females

2555

F45-49

2555

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

9984

Females

2602

F45-49

2602

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9931

Females

2629

F45-49

2629

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8224

Females

1951

F45-49

1951

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

8655

Females

2105

F45-49

2105

Passing Analysis

Category:
Athletes Passed
2827
Passed By
1936
Net Change
+891
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14524
5K → 10K381273-1235#14524#15759
10K → 15K102367-265#15759#16024
15K → 20K156189-33#16024#16057
20K → Half876+81#16057#15976
Half → 25K25144+207#15976#15769
25K → 30K43032+398#15769#15371
30K → 20M2646+258#15371#15113
20M → 21M2911+290#15113#14823
21M → 35K2000+200#14823#14623
35K → 23M2562+254#14623#14369
23M → 24M2265+221#14369#14148
24M → 40K2005+195#14148#13953
40K → 25.2M941+93#13953#13860
25.2M → Finish2325+227#13860#13633
TOTALS28271936+891
📊

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