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BOSTON MARATHON 2025

Suzi Tonini

Bib: 23299•F

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Top 47%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:08
Rank: #21164
Start → 5K
27:08 | 8:44/mi
10K· 6.21 mi
54:16
Rank: #21078 (+86)
5K → 10K
27:08 | 8:44/mi
15K· 9.32 mi
1:21:04
Rank: #20743 (+335)
10K → 15K
26:48 | 8:38/mi
20K· 12.43 mi
1:47:48
Rank: #20273 (+470)
15K → 20K
26:44 | 8:36/mi
Half· 13.11 mi
1:53:30
Rank: #20167 (+106)
20K → Half
5:42 | 8:21/mi
25K· 15.53 mi
2:14:34
Rank: #19854 (+313)
Half → 25K
21:04 | 8:41/mi
30K· 18.64 mi
2:42:23
Rank: #19378 (+476)
25K → 30K
27:49 | 8:57/mi
20M
2:54:45
Rank: #19220 (+158)
30K → 20M
12:22 | 9:06/mi
21M
3:04:02
Rank: #18976 (+244)
20M → 21M
9:17 | 9:17/mi
35K· 21.75 mi
3:10:41
Rank: #18923 (+53)
21M → 35K
6:39 | 8:53/mi
23M
3:22:36
Rank: #18923
35K → 23M
11:55 | 9:31/mi
24M
3:32:17
Rank: #19021 (-98)
23M → 24M
9:41 | 9:41/mi
40K· 24.85 mi
3:40:33
Rank: #19005 (+16)
24M → 40K
8:16 | 9:40/mi
25.2M
3:44:02
Rank: #18986 (+19)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:53:09
Rank: #18971 (+15)
25.2M → Finish
9:07 | 8:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:30
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time1:59:39
Pace9:08 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:3827:088:4427:08
8:44
-
10K
6.21 mi11:52:4654:168:4427:08
8:44
0:00
15K
9.32 mi12:19:341:21:048:4226:48
8:38
-0:06
20K
12.43 mi12:46:181:47:488:4026:44
8:36
-0:02
Half
13.11 mi12:52:001:53:308:395:42
8:21
-0:15
25K
15.53 mi13:13:042:14:348:4021:04
8:41
+0:20
30K
18.64 mi13:40:532:42:238:4327:49
8:57
+0:16
20M
20.00 mi13:53:152:54:458:4412:22
9:06
+0:09
21M
21.00 mi14:02:323:04:028:469:17
9:17
+0:11
35K
21.75 mi14:09:113:10:418:466:39
8:53
-0:24
23M
23.00 mi14:21:063:22:368:4911:55
9:31
+0:38
24M
24.00 mi14:30:473:32:178:519:41
9:41
+0:10
40K
24.85 mi14:39:033:40:338:528:16
9:40
-0:01
25.2M
25.20 mi14:42:323:44:028:533:29
10:06
+0:26
Finish
26.22 mi14:51:393:53:098:549:07
8:57
-1:09

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

8:21 /mi

Average Pace

8:54 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:20:18

34% of race

Time at Steady Pace

1:50:13

47% of race

Time at Slower Pace

42:38

18% of race

Average Pace: 8:54 /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 mi11:25:3827:088:4427:08
8:44
#21164
10K
6.21 mi11:52:4654:168:4427:08
8:44
#21078
15K
9.32 mi12:19:341:21:048:4226:48
8:38
#20743
20K
12.43 mi12:46:181:47:488:4026:44
8:36
#20273
Half
13.11 mi12:52:001:53:308:395:42
8:21
#20167
25K
15.53 mi13:13:042:14:348:4021:04
8:41
#19854
30K
18.64 mi13:40:532:42:238:4327:49
8:57
#19378
20M
20.00 mi13:53:152:54:458:4412:22
9:06
#19220
21M
21.00 mi14:02:323:04:028:469:17
9:17
#18976
35K
21.75 mi14:09:113:10:418:466:39
8:53
#18923
23M
23.00 mi14:21:063:22:368:4911:55
9:31
#18923
24M
24.00 mi14:30:473:32:178:519:41
9:41
#19021
40K
24.85 mi14:39:033:40:338:528:16
9:40
#19005
25.2M
25.20 mi14:42:323:44:028:533:29
10:06
#18986
Finish
26.22 mi14:51:393:53:098:549:07
8:57
#18971
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi211648169816920073(Top 71%)7476(Top 61%)7476(Top 574%)
10K6.21 mi3.10 mi21078+868094+758094+7521075(Top 74%)8058(Top 66%)8058(Top 618%)
15K9.32 mi3.11 mi20743+3357890+2047890+20420073(Top 71%)7476(Top 61%)7476(Top 574%)
20K12.43 mi3.11 mi20273+4707632+2587632+25818896(Top 67%)6854(Top 56%)6854(Top 526%)
Half13.11 mi0.68 mi20167+1067570+627570+6218390(Top 65%)6567(Top 54%)6567(Top 504%)
25K15.53 mi2.42 mi19854+3137399+1717399+17118340(Top 65%)6621(Top 54%)6621(Top 508%)
30K18.64 mi3.11 mi19378+4767176+2237176+22317446(Top 61%)6277(Top 51%)6277(Top 482%)
20M20.00 mi1.36 mi19220+1587105+717105+7117339(Top 61%)6336(Top 52%)6336(Top 486%)
21M21.00 mi1.00 mi18976+2446995+1106995+11015112(Top 53%)5245(Top 43%)5245(Top 403%)
35K21.75 mi0.75 mi18923+536983+126983+1217740(Top 62%)6764(Top 55%)6764(Top 519%)
23M23.00 mi1.25 mi189237004-217004-2118791(Top 66%)7398(Top 61%)7398(Top 568%)
24M24.00 mi1.00 mi19021-987079-757079-7520328(Top 72%)8254(Top 68%)8254(Top 633%)
40K24.85 mi0.85 mi19005+167103-247103-2419361(Top 68%)7813(Top 64%)7813(Top 600%)
25.2M25.20 mi0.35 mi18986+197102+17102+117527(Top 62%)6881(Top 56%)6881(Top 528%)
Finish26.22 mi1.02 mi18971+157112-107112-1018784(Top 66%)7480(Top 61%)7480(Top 574%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

20073

Females

7476

F50-54

7476

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

21075

Females

8058

F50-54

8058

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

20073

Females

7476

F50-54

7476

15K→20K

9.3 - 12.4 mi

Top 67%
×5stories
+106ft-86ft

Overall

18896

Females

6854

F50-54

6854

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

18390

Females

6567

F50-54

6567

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

18340

Females

6621

F50-54

6621

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

17446

Females

6277

F50-54

6277

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

17339

Females

6336

F50-54

6336

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

15112

Females

5245

F50-54

5245

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

17740

Females

6764

F50-54

6764

35K→23M

21.8 - 23.0 mi

Top 66%
×5stories
+23ft-63ft

Overall

18791

Females

7398

F50-54

7398

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

20328

Females

8254

F50-54

8254

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19361

Females

7813

F50-54

7813

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17527

Females

6881

F50-54

6881

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2stories
+22ft-21ft

Overall

18784

Females

7480

F50-54

7480

Passing Analysis

Category:
Athletes Passed
2992
Passed By
799
Net Change
+2193
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21164
5K → 10K323237+86#21164#21078
10K → 15K39358+335#21078#20743
15K → 20K48818+470#20743#20273
20K → Half1104+106#20273#20167
Half → 25K33623+313#20167#19854
25K → 30K50327+476#19854#19378
30K → 20M19133+158#19378#19220
20M → 21M2528+244#19220#18976
21M → 35K7623+53#18976#18923
35K → 23M1041040#18923#18923
23M → 24M36134-98#18923#19021
24M → 40K8064+16#19021#19005
40K → 25.2M3819+19#19005#18986
25.2M → Finish6247+15#18986#18971
TOTALS2992799+2193
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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