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BOSTON MARATHON 2026

Isabel Rios

Bib: 21304•F

BC

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 49%
Masters (Masters Women)
#0 / 6862
Top 37%
Age Group (F50-54)
#0 / 1233
Top 33%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
25:39
3.11 mi
Rank: #18587
Start → 5K
25:39 | 8:16/mi
10K
51:24
6.21 mi
Rank: #18861 (-274)
5K → 10K
25:45 | 8:18/mi
15K
1:17:16
9.32 mi
Rank: #18956 (-95)
10K → 15K
25:52 | 8:20/mi
20K
1:43:23
12.43 mi
Rank: #18877 (+79)
15K → 20K
26:07 | 8:25/mi
HALF
1:48:56
13.11 mi
Rank: #18836 (+41)
20K → HALF
5:33 | 8:09/mi
25K
2:09:03
15.53 mi
Rank: #18573 (+263)
HALF → 25K
20:07 | 8:18/mi
30K
2:35:11
18.64 mi
Rank: #18181 (+392)
25K → 30K
26:08 | 8:25/mi
20M
2:46:36
20.00 mi
Rank: #17957 (+224)
30K → 20M
11:25 | 8:25/mi
21M
2:55:22
21.00 mi
Rank: #17785 (+172)
20M → 21M
8:46 | 8:46/mi
35K
3:01:34
21.75 mi
Rank: #17711 (+74)
21M → 35K
6:12 | 8:18/mi
23M
3:12:08
23.00 mi
Rank: #17560 (+151)
35K → 23M
10:34 | 8:27/mi
24M
3:20:20
24.00 mi
Rank: #17415 (+145)
23M → 24M
8:12 | 8:12/mi
40K
3:27:33
24.85 mi
Rank: #17319 (+96)
24M → 40K
7:13 | 8:27/mi
25.2M
3:30:40
25.20 mi
Rank: #17263 (+56)
40K → 25.2M
3:07 | 9:03/mi
FINISH
3:38:41
26.22 mi
Rank: #17142 (+121)
25.2M → FINISH
8:01 | 7:53/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:48:56
Pace8:19 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:49:45
Pace8:23 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:4525:398:1625:39
8:16
-
10K
6.21 mi11:55:3051:248:1725:45
8:18
+0:02
15K
9.32 mi12:21:221:17:168:1825:52
8:20
+0:02
20K
12.43 mi12:47:291:43:238:2026:07
8:25
+0:05
HALF
13.11 mi12:53:021:48:568:195:33
8:09
-0:16
25K
15.53 mi13:13:092:09:038:1920:07
8:18
+0:09
30K
18.64 mi13:39:172:35:118:2026:08
8:25
+0:07
20M
20.00 mi13:50:422:46:368:2011:25
8:25
0:00
21M
21.00 mi13:59:282:55:228:228:46
8:46
+0:21
35K
21.75 mi14:05:403:01:348:216:12
8:18
-0:28
23M
23.00 mi14:16:143:12:088:2210:34
8:27
+0:09
24M
24.00 mi14:24:263:20:208:218:12
8:12
-0:15
40K
24.85 mi14:31:393:27:338:227:13
8:27
+0:15
25.2M
25.20 mi14:34:463:30:408:223:07
9:03
+0:36
FINISH
26.22 mi14:42:473:38:418:218:01
7:53
-1:10

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

7:53 /mi

Average Pace

8:21 /mi

Slowest Pace

9:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

3:26:48

95% of race

Time at Steady Pace

11:53

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:20 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:29:4525:398:1625:39
8:16
#18587
10K
6.21 mi11:55:3051:248:1725:45
8:18
#18861
15K
9.32 mi12:21:221:17:168:1825:52
8:20
#18956
20K
12.43 mi12:47:291:43:238:2026:07
8:25
#18877
HALF
13.11 mi12:53:021:48:568:195:33
8:09
#18836
25K
15.53 mi13:13:092:09:038:1920:07
8:18
#18573
30K
18.64 mi13:39:172:35:118:2026:08
8:25
#18181
20M
20.00 mi13:50:422:46:368:2011:25
8:25
#17957
21M
21.00 mi13:59:282:55:228:228:46
8:46
#17785
35K
21.75 mi14:05:403:01:348:216:12
8:18
#17711
23M
23.00 mi14:16:143:12:088:2210:34
8:27
#17560
24M
24.00 mi14:24:263:20:208:218:12
8:12
#17415
40K
24.85 mi14:31:393:27:338:227:13
8:27
#17319
25.2M
25.20 mi14:34:463:30:408:223:07
9:03
#17263
FINISH
26.22 mi14:42:473:38:418:218:01
7:53
#17142
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi185876840684019134(Top 66%)7110(Top 57%)7110(Top 577%)
10K6.21 mi3.10 mi18861-2746992-1526992-15219109(Top 66%)7083(Top 56%)7083(Top 574%)
15K9.32 mi3.11 mi18956-957025-337025-3319134(Top 66%)7110(Top 57%)7110(Top 577%)
20K12.43 mi3.11 mi18877+796988+376988+3718764(Top 65%)6943(Top 55%)6943(Top 563%)
HALF13.11 mi0.68 mi18836+416965+236965+2318080(Top 62%)6508(Top 52%)6508(Top 528%)
25K15.53 mi2.42 mi18573+2636822+1436822+14317411(Top 60%)6233(Top 50%)6233(Top 506%)
30K18.64 mi3.11 mi18181+3926638+1846638+18416347(Top 56%)5717(Top 45%)5717(Top 464%)
20M20.00 mi1.36 mi17957+2246532+1066532+10615643(Top 54%)5453(Top 43%)5453(Top 442%)
21M21.00 mi1.00 mi17785+1726451+816451+8114822(Top 51%)5054(Top 40%)5054(Top 410%)
35K21.75 mi0.75 mi17711+746421+306421+3016395(Top 56%)5980(Top 48%)5980(Top 485%)
23M23.00 mi1.25 mi17560+1516366+556366+5515378(Top 53%)5478(Top 44%)5478(Top 444%)
24M24.00 mi1.00 mi17415+1456302+646302+6415128(Top 52%)5413(Top 43%)5413(Top 439%)
40K24.85 mi0.85 mi17319+966261+416261+4115330(Top 53%)5619(Top 45%)5619(Top 456%)
25.2M25.20 mi0.35 mi17263+566240+216240+2115037(Top 52%)5487(Top 44%)5487(Top 445%)
FINISH26.22 mi1.02 mi17142+1216199+416199+4114309(Top 49%)5084(Top 40%)5084(Top 412%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21
+97ft-345ft

Overall

19134

Females

7110

F50-54

7110

5K→10K

3.1 - 6.2 mi

Top 66%
×5
+79ft-138ft

Overall

19109

Females

7083

F50-54

7083

10K→15K

6.2 - 9.3 mi

Top 66%
×3
+67ft-78ft

Overall

19134

Females

7110

F50-54

7110

15K→20K

9.3 - 12.4 mi

Top 65%
×5
+106ft-86ft

Overall

18764

Females

6943

F50-54

6943

20K→HALF

12.4 - 13.1 mi

Top 62%
×2
+19ft-37ft

Overall

18080

Females

6508

F50-54

6508

HALF→25K

13.1 - 15.5 mi

Top 60%
×4
+66ft-88ft

Overall

17411

Females

6233

F50-54

6233

25K→30K

15.5 - 18.6 mi

Top 56%
×9
+181ft-148ft

Overall

16347

Females

5717

F50-54

5717

30K→20M

18.6 - 20.0 mi

Top 54%
×5
+64ft-50ft

Overall

15643

Females

5453

F50-54

5453

20M→21M

20.0 - 21.0 mi

Top 51%
×8
+106ft-24ft

Overall

14822

Females

5054

F50-54

5054

21M→35K

21.0 - 21.8 mi

Top 56%
×7
+17ft-86ft

Overall

16395

Females

5980

F50-54

5980

35K→23M

21.8 - 23.0 mi

Top 53%
×5
+23ft-63ft

Overall

15378

Females

5478

F50-54

5478

23M→24M

23.0 - 24.0 mi

Top 52%
×6
+12ft-82ft

Overall

15128

Females

5413

F50-54

5413

24M→40K

24.0 - 24.9 mi

Top 53%
×1
+6ft-20ft

Overall

15330

Females

5619

F50-54

5619

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1
+13ft-16ft

Overall

15037

Females

5487

F50-54

5487

25.2M→FINISH

25.2 - 26.2 mi

Top 49%
×2
+22ft-21ft

Overall

14309

Females

5084

F50-54

5084

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2393
Passed By
948
Net Change
+1445
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18587
5K → 10K164438-274#18587#18861
10K → 15K132227-95#18861#18956
15K → 20K189110+79#18956#18877
20K → HALF5514+41#18877#18836
HALF → 25K28421+263#18836#18573
25K → 30K41321+392#18573#18181
30K → 20M2339+224#18181#17957
20M → 21M18412+172#17957#17785
21M → 35K9521+74#17785#17711
35K → 23M17524+151#17711#17560
23M → 24M15712+145#17560#17415
24M → 40K10913+96#17415#17319
40K → 25.2M659+56#17319#17263
25.2M → FINISH13817+121#17263#17142
TOTALS2393948+1445
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing