Boston Marathon logo
BOSTON MARATHON 2023

Monica Quiroga

Bib: 21043•F

FL

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 45%
Masters (Masters Women)
#0 / 6539
Top 33%
Division (F45-49)
#0 / 1817
Top 38%
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
8:26/mi
26:11
↑ 97↓ 3451.5%
10K· 6.21 mi
8:22/mi
52:10
↑ 79↓ 1380.4%
15K· 9.32 mi
8:25/mi
1:18:19
↑ 67↓ 78
20K· 12.43 mi
8:26/mi
1:44:32
↑ 106↓ 860.1%
Half· 13.11 mi
8:26/mi
1:50:17
↑ 19↓ 370.5%
25K· 15.53 mi
8:23/mi
2:10:37
↑ 66↓ 880.2%
30K· 18.64 mi
8:34/mi
2:37:13
↑ 181↓ 1480.2%
20M
8:42/mi
2:49:03
↑ 64↓ 500.2%
21M
8:58/mi
2:58:01
↑ 106↓ 241.6%
35K· 21.75 mi
8:20/mi
3:04:15
↑ 17↓ 861.7%
23M
8:34/mi
3:14:59
↑ 23↓ 630.6%
24M
8:31/mi
3:23:30
↓ 821.3%
40K· 24.85 mi
8:14/mi
3:30:32
↓ 200.3%
25.2M
8:42/mi
3:33:32
↑ 13↓ 160.2%
Finish· 26.22 mi
7:52/mi
3:41:33
↑ 22↓ 21

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⚖️ Balanced
Distance13.11 mi
Time1:50:17
Pace8:25 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:51:16
Pace8:29 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:0426:118:2626:11
8:26
-
10K
6.21 mi11:47:0352:108:2425:59
8:22
-0:04
15K
9.32 mi12:13:121:18:198:2426:09
8:25
+0:03
20K
12.43 mi12:39:251:44:328:2526:13
8:26
+0:01
Half
13.11 mi12:45:101:50:178:255:45
8:26
0:00
25K
15.53 mi13:05:302:10:378:2420:20
8:23
-0:03
30K
18.64 mi13:32:062:37:138:2626:36
8:34
+0:11
20M
20.00 mi13:43:562:49:038:2711:50
8:42
+0:08
21M
21.00 mi13:52:542:58:018:298:58
8:58
+0:16
35K
21.75 mi13:59:083:04:158:286:14
8:20
-0:38
23M
23.00 mi14:09:523:14:598:2910:44
8:34
+0:14
24M
24.00 mi14:18:233:23:308:298:31
8:31
-0:03
40K
24.85 mi14:25:253:30:328:287:02
8:14
-0:17
25.2M
25.20 mi14:28:253:33:328:283:00
8:42
+0:28
Finish
26.22 mi14:36:263:41:338:278:01
7:52
-0:50

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

7:52 /mi

Average Pace

8:27 /mi

Slowest Pace

8:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:45

89% of race

Time at Steady Pace

23:48

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:27 /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 mi11:21:0426:118:2626:11
8:26
#17072
10K
6.21 mi11:47:0352:108:2425:59
8:22
#17182
15K
9.32 mi12:13:121:18:198:2426:09
8:25
#17212
20K
12.43 mi12:39:251:44:328:2526:13
8:26
#17019
Half
13.11 mi12:45:101:50:178:255:45
8:26
#17033
25K
15.53 mi13:05:302:10:378:2420:20
8:23
#16791
30K
18.64 mi13:32:062:37:138:2626:36
8:34
#16377
20M
20.00 mi13:43:562:49:038:2711:50
8:42
#16237
21M
21.00 mi13:52:542:58:018:298:58
8:58
#16042
35K
21.75 mi13:59:083:04:158:286:14
8:20
#15950
23M
23.00 mi14:09:523:14:598:2910:44
8:34
#15780
24M
24.00 mi14:18:233:23:308:298:31
8:31
#15739
40K
24.85 mi14:25:253:30:328:287:02
8:14
#15589
25.2M
25.20 mi14:28:253:33:328:283:00
8:42
#15508
Finish
26.22 mi14:36:263:41:338:278:01
7:52
#15316
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi170725975597517250(Top 65%)6075(Top 53%)6075(Top 334%)
10K6.21 mi3.10 mi17182-1106040-656040-6517332(Top 65%)6080(Top 53%)6080(Top 335%)
15K9.32 mi3.11 mi17212-306038+26038+217250(Top 65%)6075(Top 53%)6075(Top 334%)
20K12.43 mi3.11 mi17019+1935936+1025936+10216476(Top 62%)5631(Top 49%)5631(Top 310%)
Half13.11 mi0.68 mi17033-145950-145950-1417306(Top 65%)6052(Top 53%)6052(Top 333%)
25K15.53 mi2.42 mi16791+2425830+1205830+12015505(Top 58%)5143(Top 45%)5143(Top 283%)
30K18.64 mi3.11 mi16377+4145609+2215609+22114709(Top 55%)4757(Top 42%)4757(Top 262%)
20M20.00 mi1.36 mi16237+1405540+695540+6914921(Top 56%)4948(Top 43%)4948(Top 272%)
21M21.00 mi1.00 mi16042+1955440+1005440+10013253(Top 50%)4088(Top 36%)4088(Top 225%)
35K21.75 mi0.75 mi15950+925401+395401+3914330(Top 54%)4747(Top 42%)4747(Top 261%)
23M23.00 mi1.25 mi15780+1705328+735328+7313687(Top 51%)4445(Top 39%)4445(Top 245%)
24M24.00 mi1.00 mi15739+415324+45324+414591(Top 55%)5013(Top 44%)5013(Top 276%)
40K24.85 mi0.85 mi15589+1505237+875237+8711598(Top 44%)3476(Top 30%)3476(Top 191%)
25.2M25.20 mi0.35 mi15508+815198+395198+3910881(Top 41%)3155(Top 28%)3155(Top 174%)
Finish26.22 mi1.02 mi15316+1925092+1065092+10611210(Top 42%)3316(Top 29%)3316(Top 182%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

17250

Females

6075

F45-49

6075

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

17332

Females

6080

F45-49

6080

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

17250

Females

6075

F45-49

6075

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

16476

Females

5631

F45-49

5631

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

17306

Females

6052

F45-49

6052

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

15505

Females

5143

F45-49

5143

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

14709

Females

4757

F45-49

4757

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

14921

Females

4948

F45-49

4948

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

13253

Females

4088

F45-49

4088

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

14330

Females

4747

F45-49

4747

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

13687

Females

4445

F45-49

4445

23M→24M

23.0 - 24.0 mi

Top 55%
×6story building
+12ft-82ft

Overall

14591

Females

5013

F45-49

5013

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11598

Females

3476

F45-49

3476

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10881

Females

3155

F45-49

3155

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11210

Females

3316

F45-49

3316

Passing Analysis

Category:
Athletes Passed
2623
Passed By
867
Net Change
+1756
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17072
5K → 10K265375-110#17072#17182
10K → 15K179209-30#17182#17212
15K → 20K28188+193#17212#17019
20K → Half2337-14#17019#17033
Half → 25K26018+242#17033#16791
25K → 30K43925+414#16791#16377
30K → 20M15515+140#16377#16237
20M → 21M2049+195#16237#16042
21M → 35K10311+92#16042#15950
35K → 23M18919+170#15950#15780
23M → 24M9049+41#15780#15739
24M → 40K1577+150#15739#15589
40K → 25.2M810+81#15589#15508
25.2M → Finish1975+192#15508#15316
TOTALS2623867+1756
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing