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BOSTON MARATHON 2025

Deborah Smrcina

Bib: 17000•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 35%
Gender (Female)
#0 / 12228
Top 18%
Masters (Masters Women)
#0 / 6759
Top 7%
Division (F45-49)
#0 / 1813
Top 8%
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
7:32/mi
23:23
↑ 97↓ 3451.5%
10K· 6.21 mi
7:38/mi
47:05
↑ 79↓ 1380.4%
15K· 9.32 mi
7:36/mi
1:10:41
↑ 67↓ 78
20K· 12.43 mi
7:34/mi
1:34:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:31/mi
1:39:21
↑ 19↓ 370.5%
25K· 15.53 mi
7:35/mi
1:57:44
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:21:41
↑ 181↓ 1480.2%
20M
7:38/mi
2:32:04
↑ 64↓ 500.2%
21M
8:05/mi
2:40:09
↑ 106↓ 241.6%
35K· 21.75 mi
7:20/mi
2:45:38
↑ 17↓ 861.7%
23M
7:38/mi
2:55:12
↑ 23↓ 630.6%
24M
7:26/mi
3:02:38
↓ 821.3%
40K· 24.85 mi
7:29/mi
3:09:02
↓ 200.3%
25.2M
8:10/mi
3:11:51
↑ 13↓ 160.2%
Finish· 26.22 mi
7:26/mi
3:19:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:39:21
Pace7:35 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:40:04
Pace7:38 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:2823:237:3223:23
7:32
-
10K
6.21 mi11:37:1047:057:3523:42
7:38
+0:06
15K
9.32 mi12:00:461:10:417:3523:36
7:36
-0:02
20K
12.43 mi12:24:181:34:137:3523:32
7:34
-0:02
Half
13.11 mi12:29:261:39:217:355:08
7:31
-0:03
25K
15.53 mi12:47:491:57:447:3518:23
7:35
+0:04
30K
18.64 mi13:11:462:21:417:3623:57
7:43
+0:08
20M
20.00 mi13:22:092:32:047:3610:23
7:38
-0:05
21M
21.00 mi13:30:142:40:097:388:05
8:05
+0:27
35K
21.75 mi13:35:432:45:387:375:29
7:20
-0:45
23M
23.00 mi13:45:172:55:127:379:34
7:38
+0:18
24M
24.00 mi13:52:433:02:387:377:26
7:26
-0:12
40K
24.85 mi13:59:073:09:027:366:24
7:29
+0:03
25.2M
25.20 mi14:01:563:11:517:372:49
8:10
+0:41
Finish
26.22 mi14:09:303:19:257:377:34
7:26
-0:44

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

7:20 /mi

Average Pace

7:37 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:31

95% of race

Time at Steady Pace

10:54

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:36 /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 mi11:13:2823:237:3223:23
7:32
#12469
10K
6.21 mi11:37:1047:057:3523:42
7:38
#12816
15K
9.32 mi12:00:461:10:417:3523:36
7:36
#12723
20K
12.43 mi12:24:181:34:137:3523:32
7:34
#12325
Half
13.11 mi12:29:261:39:217:355:08
7:31
#12317
25K
15.53 mi12:47:491:57:447:3518:23
7:35
#11995
30K
18.64 mi13:11:462:21:417:3623:57
7:43
#11434
20M
20.00 mi13:22:092:32:047:3610:23
7:38
#11108
21M
21.00 mi13:30:142:40:097:388:05
8:05
#10894
35K
21.75 mi13:35:432:45:387:375:29
7:20
#10740
23M
23.00 mi13:45:172:55:127:379:34
7:38
#10493
24M
24.00 mi13:52:433:02:387:377:26
7:26
#10308
40K
24.85 mi13:59:073:09:027:366:24
7:29
#10128
25.2M
25.20 mi14:01:563:11:517:372:49
8:10
#10055
Finish
26.22 mi14:09:303:19:257:377:34
7:26
#9970
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi124693046304612568(Top 44%)3195(Top 26%)3195(Top 176%)
10K6.21 mi3.10 mi12816-3473238-1923238-19213270(Top 47%)3534(Top 29%)3534(Top 195%)
15K9.32 mi3.11 mi12723+933219+193219+1912568(Top 44%)3195(Top 26%)3195(Top 176%)
20K12.43 mi3.11 mi12325+3983043+1763043+17611390(Top 40%)2675(Top 22%)2675(Top 148%)
Half13.11 mi0.68 mi12317+83047-43047-411922(Top 42%)2872(Top 23%)2872(Top 158%)
25K15.53 mi2.42 mi11995+3222917+1302917+13010621(Top 37%)2385(Top 20%)2385(Top 132%)
30K18.64 mi3.11 mi11434+5612695+2222695+2229258(Top 33%)1947(Top 16%)1947(Top 107%)
20M20.00 mi1.36 mi11108+3262559+1362559+1368007(Top 28%)1550(Top 13%)1550(Top 85%)
21M21.00 mi1.00 mi10894+2142494+652494+657885(Top 28%)1682(Top 14%)1682(Top 93%)
35K21.75 mi0.75 mi10740+1542432+622432+627473(Top 26%)1495(Top 12%)1495(Top 82%)
23M23.00 mi1.25 mi10493+2472346+862346+867550(Top 27%)1641(Top 13%)1641(Top 91%)
24M24.00 mi1.00 mi10308+1852290+562290+567298(Top 26%)1587(Top 13%)1587(Top 88%)
40K24.85 mi0.85 mi10128+1802245+452245+456779(Top 24%)1466(Top 12%)1466(Top 81%)
25.2M25.20 mi0.35 mi10055+732222+232222+236973(Top 25%)1645(Top 13%)1645(Top 91%)
Finish26.22 mi1.02 mi9970+852206+162206+168695(Top 31%)2386(Top 20%)2386(Top 132%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

12568

Females

3195

F45-49

3195

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

13270

Females

3534

F45-49

3534

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

12568

Females

3195

F45-49

3195

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11390

Females

2675

F45-49

2675

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11922

Females

2872

F45-49

2872

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

10621

Females

2385

F45-49

2385

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

9258

Females

1947

F45-49

1947

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

8007

Females

1550

F45-49

1550

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7885

Females

1682

F45-49

1682

21M→35K

21.0 - 21.8 mi

Top 26%
×7story building
+17ft-86ft

Overall

7473

Females

1495

F45-49

1495

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7550

Females

1641

F45-49

1641

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

7298

Females

1587

F45-49

1587

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6779

Females

1466

F45-49

1466

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6973

Females

1645

F45-49

1645

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8695

Females

2386

F45-49

2386

Passing Analysis

Category:
Athletes Passed
3329*
Passed By
830
Net Change
+2499
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12469
5K → 10K153500-347#12469#12816
10K → 15K233140+93#12816#12723
15K → 20K43234+398#12723#12325
20K → Half3628+8#12325#12317
Half → 25K34725+322#12317#11995
25K → 30K57615+561#11995#11434
30K → 20M3304+326#11434#11108
20M → 21M23117+214#11108#10894
21M → 35K1584+154#10894#10740
35K → 23M2558+247#10740#10493
23M → 24M20318+185#10493#10308
24M → 40K1888+180#10308#10128
40K → 25.2M741+73#10128#10055
25.2M → Finish113*28+85#10055#9970
TOTALS3329*830+2499

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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