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BOSTON MARATHON 2026

Katherine Arce

Bib: 22393•F

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F45-49)
#0 / 1786
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
27:24
3.11 mi
Rank: #21789
Start → 5K
27:24 | 8:50/mi
10K
54:19
6.21 mi
Rank: #21548 (+241)
5K → 10K
26:55 | 8:40/mi
15K
1:21:22
9.32 mi
Rank: #21414 (+134)
10K → 15K
27:03 | 8:43/mi
20K
1:48:21
12.43 mi
Rank: #21136 (+278)
15K → 20K
26:59 | 8:42/mi
HALF
1:54:09
13.11 mi
Rank: #21079 (+57)
20K → HALF
5:48 | 8:31/mi
25K
2:15:21
15.53 mi
Rank: #20897 (+182)
HALF → 25K
21:12 | 8:45/mi
30K
2:43:13
18.64 mi
Rank: #20632 (+265)
25K → 30K
27:52 | 8:59/mi
20M
2:55:21
20.00 mi
Rank: #20462 (+170)
30K → 20M
12:08 | 8:56/mi
21M
3:04:33
21.00 mi
Rank: #20276 (+186)
20M → 21M
9:12 | 9:12/mi
35K
3:10:55
21.75 mi
Rank: #20200 (+76)
21M → 35K
6:22 | 8:31/mi
23M
3:21:42
23.00 mi
Rank: #19986 (+214)
35K → 23M
10:47 | 8:38/mi
24M
3:30:11
24.00 mi
Rank: #19839 (+147)
23M → 24M
8:29 | 8:29/mi
40K
3:37:29
24.85 mi
Rank: #19706 (+133)
24M → 40K
7:18 | 8:33/mi
25.2M
3:40:37
25.20 mi
Rank: #19640 (+66)
40K → 25.2M
3:08 | 9:06/mi
FINISH
3:48:36
26.22 mi
Rank: #19443 (+197)
25.2M → FINISH
7:59 | 7:51/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:54:09
Pace8:43 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:54:27
Pace8:44 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:1727:248:5027:24
8:50
-
10K
6.21 mi11:56:1254:198:4526:55
8:40
-0:10
15K
9.32 mi12:23:151:21:228:4427:03
8:43
+0:03
20K
12.43 mi12:50:141:48:218:4426:59
8:42
-0:01
HALF
13.11 mi12:56:021:54:098:435:48
8:31
-0:11
25K
15.53 mi13:17:142:15:218:4321:12
8:45
+0:14
30K
18.64 mi13:45:062:43:138:4627:52
8:59
+0:14
20M
20.00 mi13:57:142:55:218:4712:08
8:56
-0:03
21M
21.00 mi14:06:263:04:338:489:12
9:12
+0:16
35K
21.75 mi14:12:483:10:558:476:22
8:31
-0:41
23M
23.00 mi14:23:353:21:428:4710:47
8:38
+0:07
24M
24.00 mi14:32:043:30:118:468:29
8:29
-0:09
40K
24.85 mi14:39:223:37:298:467:18
8:33
+0:04
25.2M
25.20 mi14:42:303:40:378:463:08
9:06
+0:33
FINISH
26.22 mi14:50:293:48:368:447:59
7:51
-1:15

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

7:51 /mi

Average Pace

8:44 /mi

Slowest Pace

9:12 /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

46:43

20% of race

Time at Steady Pace

3:01:53

80% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:43 /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 mi11:29:1727:248:5027:24
8:50
#21789
10K
6.21 mi11:56:1254:198:4526:55
8:40
#21548
15K
9.32 mi12:23:151:21:228:4427:03
8:43
#21414
20K
12.43 mi12:50:141:48:218:4426:59
8:42
#21136
HALF
13.11 mi12:56:021:54:098:435:48
8:31
#21079
25K
15.53 mi13:17:142:15:218:4321:12
8:45
#20897
30K
18.64 mi13:45:062:43:138:4627:52
8:59
#20632
20M
20.00 mi13:57:142:55:218:4712:08
8:56
#20462
21M
21.00 mi14:06:263:04:338:489:12
9:12
#20276
35K
21.75 mi14:12:483:10:558:476:22
8:31
#20200
23M
23.00 mi14:23:353:21:428:4710:47
8:38
#19986
24M
24.00 mi14:32:043:30:118:468:29
8:29
#19839
40K
24.85 mi14:39:223:37:298:467:18
8:33
#19706
25.2M
25.20 mi14:42:303:40:378:463:08
9:06
#19640
FINISH
26.22 mi14:50:293:48:368:447:59
7:51
#19443
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi217898574857421237(Top 73%)8251(Top 66%)8251(Top 462%)
10K6.21 mi3.10 mi21548+2418437+1378437+13721242(Top 73%)8257(Top 66%)8257(Top 462%)
15K9.32 mi3.11 mi21414+1348363+748363+7421237(Top 73%)8251(Top 66%)8251(Top 462%)
20K12.43 mi3.11 mi21136+2788223+1408223+14020372(Top 70%)7824(Top 62%)7824(Top 438%)
HALF13.11 mi0.68 mi21079+578193+308193+3020327(Top 70%)7758(Top 62%)7758(Top 434%)
25K15.53 mi2.42 mi20897+1828110+838110+8319938(Top 69%)7627(Top 61%)7627(Top 427%)
30K18.64 mi3.11 mi20632+2657994+1167994+11619441(Top 67%)7454(Top 59%)7454(Top 417%)
20M20.00 mi1.36 mi20462+1707907+877907+8718638(Top 64%)7101(Top 56%)7101(Top 398%)
21M21.00 mi1.00 mi20276+1867831+767831+7617190(Top 59%)6380(Top 51%)6380(Top 357%)
35K21.75 mi0.75 mi20200+767795+367795+3617684(Top 61%)6733(Top 54%)6733(Top 377%)
23M23.00 mi1.25 mi19986+2147705+907705+9016451(Top 57%)6123(Top 49%)6123(Top 343%)
24M24.00 mi1.00 mi19839+1477656+497656+4916856(Top 58%)6395(Top 51%)6395(Top 358%)
40K24.85 mi0.85 mi19706+1337584+727584+7215974(Top 55%)5967(Top 47%)5967(Top 334%)
25.2M25.20 mi0.35 mi19640+667555+297555+2915310(Top 53%)5631(Top 45%)5631(Top 315%)
FINISH26.22 mi1.02 mi19443+1977466+897466+8914081(Top 49%)4969(Top 40%)4969(Top 278%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21
+97ft-345ft

Overall

21237

Females

8251

F45-49

8251

5K→10K

3.1 - 6.2 mi

Top 73%
×5
+79ft-138ft

Overall

21242

Females

8257

F45-49

8257

10K→15K

6.2 - 9.3 mi

Top 73%
×3
+67ft-78ft

Overall

21237

Females

8251

F45-49

8251

15K→20K

9.3 - 12.4 mi

Top 70%
×5
+106ft-86ft

Overall

20372

Females

7824

F45-49

7824

20K→HALF

12.4 - 13.1 mi

Top 70%
×2
+19ft-37ft

Overall

20327

Females

7758

F45-49

7758

HALF→25K

13.1 - 15.5 mi

Top 69%
×4
+66ft-88ft

Overall

19938

Females

7627

F45-49

7627

25K→30K

15.5 - 18.6 mi

Top 67%
×9
+181ft-148ft

Overall

19441

Females

7454

F45-49

7454

30K→20M

18.6 - 20.0 mi

Top 64%
×5
+64ft-50ft

Overall

18638

Females

7101

F45-49

7101

20M→21M

20.0 - 21.0 mi

Top 59%
×8
+106ft-24ft

Overall

17190

Females

6380

F45-49

6380

21M→35K

21.0 - 21.8 mi

Top 61%
×7
+17ft-86ft

Overall

17684

Females

6733

F45-49

6733

35K→23M

21.8 - 23.0 mi

Top 57%
×5
+23ft-63ft

Overall

16451

Females

6123

F45-49

6123

23M→24M

23.0 - 24.0 mi

Top 58%
×6
+12ft-82ft

Overall

16856

Females

6395

F45-49

6395

24M→40K

24.0 - 24.9 mi

Top 55%
×1
+6ft-20ft

Overall

15974

Females

5967

F45-49

5967

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1
+13ft-16ft

Overall

15310

Females

5631

F45-49

5631

25.2M→FINISH

25.2 - 26.2 mi

Top 49%
×2
+22ft-21ft

Overall

14081

Females

4969

F45-49

4969

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2838
Passed By
492
Net Change
+2346
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21789
5K → 10K432191+241#21789#21548
10K → 15K240106+134#21548#21414
15K → 20K31638+278#21414#21136
20K → HALF647+57#21136#21079
HALF → 25K22139+182#21079#20897
25K → 30K31348+265#20897#20632
30K → 20M18616+170#20632#20462
20M → 21M1959+186#20462#20276
21M → 35K859+76#20276#20200
35K → 23M2228+214#20200#19986
23M → 24M1569+147#19986#19839
24M → 40K1396+133#19839#19706
40K → 25.2M704+66#19706#19640
25.2M → FINISH1992+197#19640#19443
TOTALS2838492+2346
📊

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