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BOSTON MARATHON 2025

Tatiana Simons

Bib: 27957•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ 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
10:24/mi
32:20
↑ 97↓ 3451.5%
10K· 6.21 mi
9:27/mi
1:01:42
↑ 79↓ 1380.4%
15K· 9.32 mi
9:18/mi
1:30:37
↑ 67↓ 78
20K· 12.43 mi
9:52/mi
2:01:15
↑ 106↓ 860.1%
Half· 13.11 mi
9:48/mi
2:07:56
↑ 19↓ 370.5%
25K· 15.53 mi
9:53/mi
2:31:53
↑ 66↓ 880.2%
30K· 18.64 mi
11:29/mi
3:07:35
↑ 181↓ 1480.2%
20M
12:20/mi
3:24:20
↑ 64↓ 500.2%
21M
16:03/mi
3:40:23
↑ 106↓ 241.6%
35K· 21.75 mi
11:47/mi
3:49:12
↑ 17↓ 861.7%
23M
13:08/mi
4:05:38
↑ 23↓ 630.6%
24M
15:55/mi
4:21:33
↓ 821.3%
40K· 24.85 mi
12:58/mi
4:32:38
↓ 200.3%
25.2M
16:55/mi
4:38:28
↑ 13↓ 160.2%
Finish· 26.22 mi
10:51/mi
4:49:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:56
Pace9:46 /mi
2nd Half
Distance13.11 mi
Time2:41:35
Pace12:20 /mi
📊Positive Split: 26.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:2932:2010:2432:20
10:24
-
10K
6.21 mi12:18:511:01:429:5629:22
9:27
-0:57
15K
9.32 mi12:47:461:30:379:4328:55
9:18
-0:09
20K
12.43 mi13:18:242:01:159:4530:38
9:52
+0:34
Half
13.11 mi13:25:052:07:569:466:41
9:48
-0:04
25K
15.53 mi13:49:022:31:539:4723:57
9:53
+0:05
30K
18.64 mi14:24:443:07:3510:0435:42
11:29
+1:36
20M
20.00 mi14:41:293:24:2010:1316:45
12:20
+0:51
21M
21.00 mi14:57:323:40:2310:3016:03
16:03
+3:43
35K
21.75 mi15:06:213:49:1210:328:49
11:47
-4:16
23M
23.00 mi15:22:474:05:3810:4116:26
13:08
+1:21
24M
24.00 mi15:38:424:21:3310:5415:55
15:55
+2:47
40K
24.85 mi15:49:474:32:3810:5811:05
12:58
-2:57
25.2M
25.20 mi15:55:374:38:2811:035:50
16:55
+3:57
Finish
26.22 mi16:06:404:49:3111:0311:03
10:51
-6:04

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

9:18 /mi

Average Pace

11:03 /mi

Slowest Pace

16:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:33

41% of race

Time at Steady Pace

1:44:39

36% of race

Time at Slower Pace

1:05:19

23% of race

Average Pace: 11:03 /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 mi11:49:2932:2010:2432:20
10:24
#26549
10K
6.21 mi12:18:511:01:429:5629:22
9:27
#25251
15K
9.32 mi12:47:461:30:379:4328:55
9:18
#24633
20K
12.43 mi13:18:242:01:159:4530:38
9:52
#24432
Half
13.11 mi13:25:052:07:569:466:41
9:48
#24435
25K
15.53 mi13:49:022:31:539:4723:57
9:53
#24175
30K
18.64 mi14:24:443:07:3510:0435:42
11:29
#24374
20M
20.00 mi14:41:293:24:2010:1316:45
12:20
#24524
21M
21.00 mi14:57:323:40:2310:3016:03
16:03
#24845
35K
21.75 mi15:06:213:49:1210:328:49
11:47
#24889
23M
23.00 mi15:22:474:05:3810:4116:26
13:08
#25042
24M
24.00 mi15:38:424:21:3310:5415:55
15:55
#25321
40K
24.85 mi15:49:474:32:3810:5811:05
12:58
#25377
25.2M
25.20 mi15:55:374:38:2811:035:50
16:55
#25477
Finish
26.22 mi16:06:404:49:3111:0311:03
10:51
#25473
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26549110681106823228(Top 82%)9224(Top 75%)9224(Top 169%)
10K6.21 mi3.10 mi25251+129810368+70010368+70023980(Top 84%)9671(Top 79%)9671(Top 177%)
15K9.32 mi3.11 mi24633+61810030+33810030+33823228(Top 82%)9224(Top 75%)9224(Top 169%)
20K12.43 mi3.11 mi24432+2019936+949936+9423902(Top 84%)9652(Top 79%)9652(Top 176%)
Half13.11 mi0.68 mi24435-39938-29938-224343(Top 86%)9905(Top 81%)9905(Top 181%)
25K15.53 mi2.42 mi24175+2609805+1339805+13322955(Top 81%)9170(Top 75%)9170(Top 168%)
30K18.64 mi3.11 mi24374-1999935-1309935-13024832(Top 87%)10314(Top 84%)10314(Top 189%)
20M20.00 mi1.36 mi24524-15010027-9210027-9225701(Top 90%)10848(Top 89%)10848(Top 198%)
21M21.00 mi1.00 mi24845-32110223-19610223-19627825(Top 98%)11968(Top 98%)11968(Top 219%)
35K21.75 mi0.75 mi24889-4410250-2710250-2725526(Top 90%)10860(Top 89%)10860(Top 199%)
23M23.00 mi1.25 mi25042-15310354-10410354-10426521(Top 93%)11358(Top 93%)11358(Top 208%)
24M24.00 mi1.00 mi25321-27910515-16110515-16128213(Top 99%)12178(Top 100%)12178(Top 223%)
40K24.85 mi0.85 mi25377-5610555-4010555-4026251(Top 92%)11268(Top 92%)11268(Top 206%)
25.2M25.20 mi0.35 mi25477-10010617-6210617-6228032(Top 99%)12122(Top 99%)12122(Top 222%)
Finish26.22 mi1.02 mi25473+410620-310620-325026(Top 88%)10669(Top 87%)10669(Top 195%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

23228

Females

9224

F18-39

9224

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23980

Females

9671

F18-39

9671

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

23228

Females

9224

F18-39

9224

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

23902

Females

9652

F18-39

9652

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

24343

Females

9905

F18-39

9905

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

22955

Females

9170

F18-39

9170

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

24832

Females

10314

F18-39

10314

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

25701

Females

10848

F18-39

10848

20M→21M

20.0 - 21.0 mi

Top 98%
×8story building
+106ft-24ft

Overall

27825

Females

11968

F18-39

11968

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

25526

Females

10860

F18-39

10860

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

26521

Females

11358

F18-39

11358

23M→24M

23.0 - 24.0 mi

Top 99%
×6story building
+12ft-82ft

Overall

28213

Females

12178

F18-39

12178

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26251

Females

11268

F18-39

11268

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

28032

Females

12122

F18-39

12122

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

25026

Females

10669

F18-39

10669

Passing Analysis

Category:
Athletes Passed
2669
Passed By
1593
Net Change
+1076
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26549
5K → 10K12991+1298#26549#25251
10K → 15K6235+618#25251#24633
15K → 20K24342+201#24633#24432
20K → Half2528-3#24432#24435
Half → 25K27818+260#24435#24175
25K → 30K79278-199#24175#24374
30K → 20M26176-150#24374#24524
20M → 21M9330-321#24524#24845
21M → 35K2064-44#24845#24889
35K → 23M13166-153#24889#25042
23M → 24M5284-279#25042#25321
24M → 40K1571-56#25321#25377
40K → 25.2M0100-100#25377#25477
25.2M → Finish3430+4#25477#25473
TOTALS26691593+1076
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing