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BOSTON MARATHON 2026

Anna Achon Sostres

Bib: 15771 •F •Age: N/A

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 49%
Gender (Female)
#0 / 12578
Top 36%
Masters (Masters Women)
#0 / 6862
Top 20%
Age Group (F50-54)
#0 / 1233
Top 14%
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
23:01
3.11 mi
Rank: #12035
Start → 5K
23:01 | 7:25/mi
10K
46:13
6.21 mi
Rank: #12308 (-273)
5K → 10K
23:12 | 7:29/mi
15K
1:10:03
9.32 mi
Rank: #12942 (-634)
10K → 15K
23:50 | 7:41/mi
20K
1:34:21
12.43 mi
Rank: #13374 (-432)
15K → 20K
24:18 | 7:50/mi
HALF
1:39:41
13.11 mi
Rank: #13484 (-110)
20K → HALF
5:20 | 7:50/mi
25K
1:59:00
15.53 mi
Rank: #13738 (-254)
HALF → 25K
19:19 | 7:58/mi
30K
2:24:39
18.64 mi
Rank: #14011 (-273)
25K → 30K
25:39 | 8:16/mi
20M
2:36:01
20.00 mi
Rank: #14119 (-108)
30K → 20M
11:22 | 8:23/mi
21M
2:44:49
21.00 mi
Rank: #14149 (-30)
20M → 21M
8:48 | 8:48/mi
35K
2:50:55
21.75 mi
Rank: #14177 (-28)
21M → 35K
6:06 | 8:10/mi
23M
3:01:23
23.00 mi
Rank: #14199 (-22)
35K → 23M
10:28 | 8:22/mi
24M
3:09:40
24.00 mi
Rank: #14267 (-68)
23M → 24M
8:17 | 8:17/mi
40K
3:16:41
24.85 mi
Rank: #14245 (+22)
24M → 40K
7:01 | 8:13/mi
25.2M
3:19:45
25.20 mi
Rank: #14245
40K → 25.2M
3:04 | 8:54/mi
FINISH
3:27:44
26.22 mi
Rank: #14248 (-3)
25.2M → FINISH
7:59 | 7:51/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:39:41
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:48:03
Pace8:15 /mi
📊Positive Split: 8.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:3823:017:2523:01
7:25
-
10K
6.21 mi11:17:5046:137:2723:12
7:29
+0:04
15K
9.32 mi11:41:401:10:037:3123:50
7:41
+0:12
20K
12.43 mi12:05:581:34:217:3624:18
7:50
+0:09
HALF
13.11 mi12:11:181:39:417:375:20
7:50
0:00
25K
15.53 mi12:30:371:59:007:4019:19
7:58
+0:08
30K
18.64 mi12:56:162:24:397:4625:39
8:16
+0:18
20M
20.00 mi13:07:382:36:017:4911:22
8:23
+0:07
21M
21.00 mi13:16:262:44:497:518:48
8:48
+0:25
35K
21.75 mi13:22:322:50:557:526:06
8:10
-0:38
23M
23.00 mi13:33:003:01:237:5410:28
8:22
+0:12
24M
24.00 mi13:41:173:09:407:558:17
8:17
-0:05
40K
24.85 mi13:48:183:16:417:557:01
8:13
-0:04
25.2M
25.20 mi13:51:223:19:457:563:04
8:54
+0:41
FINISH
26.22 mi13:59:213:27:447:567:59
7:51
-1:03

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

7:25 /mi

Average Pace

7:56 /mi

Slowest Pace

8:54 /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

2:06:59

61% of race

Time at Steady Pace

1:08:53

33% of race

Time at Slower Pace

11:52

6% of race

Average Pace: 7:55 /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 mi10:54:3823:017:2523:01
7:25
#12035
10K
6.21 mi11:17:5046:137:2723:12
7:29
#12308
15K
9.32 mi11:41:401:10:037:3123:50
7:41
#12942
20K
12.43 mi12:05:581:34:217:3624:18
7:50
#13374
HALF
13.11 mi12:11:181:39:417:375:20
7:50
#13484
25K
15.53 mi12:30:371:59:007:4019:19
7:58
#13738
30K
18.64 mi12:56:162:24:397:4625:39
8:16
#14011
20M
20.00 mi13:07:382:36:017:4911:22
8:23
#14119
21M
21.00 mi13:16:262:44:497:518:48
8:48
#14149
35K
21.75 mi13:22:322:50:557:526:06
8:10
#14177
23M
23.00 mi13:33:003:01:237:5410:28
8:22
#14199
24M
24.00 mi13:41:173:09:407:558:17
8:17
#14267
40K
24.85 mi13:48:183:16:417:557:01
8:13
#14245
25.2M
25.20 mi13:51:223:19:457:563:04
8:54
#14245
FINISH
26.22 mi13:59:213:27:447:567:59
7:51
#14248
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 mi120352940294014308(Top 49%)4326(Top 34%)4326(Top 351%)
10K6.21 mi3.10 mi12308-2733118-1783118-17812668(Top 44%)3356(Top 27%)3356(Top 272%)
15K9.32 mi3.11 mi12942-6343504-3863504-38614308(Top 49%)4326(Top 34%)4326(Top 351%)
20K12.43 mi3.11 mi13374-4323789-2853789-28514712(Top 51%)4625(Top 37%)4625(Top 375%)
HALF13.11 mi0.68 mi13484-1103847-583847-5815762(Top 54%)5179(Top 41%)5179(Top 420%)
25K15.53 mi2.42 mi13738-2544015-1684015-16815146(Top 52%)4942(Top 39%)4942(Top 401%)
30K18.64 mi3.11 mi14011-2734204-1894204-18915308(Top 53%)5141(Top 41%)5141(Top 417%)
20M20.00 mi1.36 mi14119-1084304-1004304-10015351(Top 53%)5270(Top 42%)5270(Top 427%)
21M21.00 mi1.00 mi14149-304341-374341-3714997(Top 52%)5134(Top 41%)5134(Top 416%)
35K21.75 mi0.75 mi14177-284375-344375-3415511(Top 53%)5469(Top 43%)5469(Top 444%)
23M23.00 mi1.25 mi14199-224415-404415-4014879(Top 51%)5200(Top 41%)5200(Top 422%)
24M24.00 mi1.00 mi14267-684481-664481-6615589(Top 54%)5658(Top 45%)5658(Top 459%)
40K24.85 mi0.85 mi14245+224494-134494-1313836(Top 48%)4789(Top 38%)4789(Top 388%)
25.2M25.20 mi0.35 mi142454506-124506-1214128(Top 49%)4969(Top 40%)4969(Top 403%)
FINISH26.22 mi1.02 mi14248-34529-234529-2314052(Top 48%)4940(Top 39%)4940(Top 401%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21
+97ft-345ft

Overall

14308

Females

4326

F50-54

4326

5K→10K

3.1 - 6.2 mi

Top 44%
×5
+79ft-138ft

Overall

12668

Females

3356

F50-54

3356

10K→15K

6.2 - 9.3 mi

Top 49%
×3
+67ft-78ft

Overall

14308

Females

4326

F50-54

4326

15K→20K

9.3 - 12.4 mi

Top 51%
×5
+106ft-86ft

Overall

14712

Females

4625

F50-54

4625

20K→HALF

12.4 - 13.1 mi

Top 54%
×2
+19ft-37ft

Overall

15762

Females

5179

F50-54

5179

HALF→25K

13.1 - 15.5 mi

Top 52%
×4
+66ft-88ft

Overall

15146

Females

4942

F50-54

4942

25K→30K

15.5 - 18.6 mi

Top 53%
×9
+181ft-148ft

Overall

15308

Females

5141

F50-54

5141

30K→20M

18.6 - 20.0 mi

Top 53%
×5
+64ft-50ft

Overall

15351

Females

5270

F50-54

5270

20M→21M

20.0 - 21.0 mi

Top 52%
×8
+106ft-24ft

Overall

14997

Females

5134

F50-54

5134

21M→35K

21.0 - 21.8 mi

Top 53%
×7
+17ft-86ft

Overall

15511

Females

5469

F50-54

5469

35K→23M

21.8 - 23.0 mi

Top 51%
×5
+23ft-63ft

Overall

14879

Females

5200

F50-54

5200

23M→24M

23.0 - 24.0 mi

Top 54%
×6
+12ft-82ft

Overall

15589

Females

5658

F50-54

5658

24M→40K

24.0 - 24.9 mi

Top 48%
×1
+6ft-20ft

Overall

13836

Females

4789

F50-54

4789

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1
+13ft-16ft

Overall

14128

Females

4969

F50-54

4969

25.2M→FINISH

25.2 - 26.2 mi

Top 48%
×2
+22ft-21ft

Overall

14052

Females

4940

F50-54

4940

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
987
Passed By
1882
Net Change
-2213
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12035
5K → 10K157200-273#12035#12308
10K → 15K59200-634#12308#12942
15K → 20K56200-432#12942#13374
20K → HALF6116-110#13374#13484
HALF → 25K64200-254#13484#13738
25K → 30K116200-273#13738#14011
30K → 20M72180-108#14011#14119
20M → 21M89119-30#14119#14149
21M → 35K5078-28#14149#14177
35K → 23M89111-22#14177#14199
23M → 24M54122-68#14199#14267
24M → 40K7351+22#14267#14245
40K → 25.2M39390#14245#14245
25.2M → FINISH6366-3#14245#14248
TOTALS9871882-2213
📊

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